Android mp3 3gp media player simple activity

package com.sodonsolution.android.components;

import android.app.Activity;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnBufferingUpdateListener;
import android.media.MediaPlayer.OnCompletionListener;
import android.media.MediaPlayer.OnPreparedListener;
import android.media.MediaPlayer.OnVideoSizeChangedListener;
import android.os.Bundle;
import android.util.Log;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.widget.Toast;
import com.sodonsolution.android.R;

import java.io.IOException;


public class SimpleMediaPlayerActivity extends Activity implements
        OnBufferingUpdateListener, OnCompletionListener,
        OnPreparedListener, OnVideoSizeChangedListener, SurfaceHolder.Callback {

    private static final String TAG = "MediaPlayerDemo";
    private int mVideoWidth;
    private int mVideoHeight;
    private MediaPlayer mMediaPlayer;
    private SurfaceView mPreview;
    private SurfaceHolder holder;
    private String path;
    private Bundle extras;
    private static final String MEDIA = "media";
    private static final int LOCAL_AUDIO = 1;
    private static final int STREAM_AUDIO = 2;
    private static final int RESOURCES_AUDIO = 3;
    private static final int LOCAL_VIDEO = 4;
    private static final int STREAM_VIDEO = 5;
    private boolean mIsVideoSizeKnown = false;
    private boolean mIsVideoReadyToBePlayed = false;

    /**
     * Called when the activity is first created.
     */
    @Override
    public void onCreate(Bundle icicle) {
        super.onCreate(icicle);
        setContentView(R.layout.simple);

        mPreview = (SurfaceView) findViewById(R.id.surface);
        holder = mPreview.getHolder();
        holder.addCallback(this);
        holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
        extras = getIntent().getExtras();
        if (extras == null) {
            extras = new Bundle();
            extras.putInt(MEDIA, STREAM_VIDEO);
        }
    }

    private void playVideo(Integer Media) {
        doCleanUp();
        try {

            switch (Media) {
                case LOCAL_VIDEO:
                    /*
                     * TODO: Set the path variable to a local media file path.
                     */
                    path = "";
                    if (path == "") {
                        // Tell the user to provide a media file URL.
                        Toast
                                .makeText(
                                        SimpleMediaPlayerActivity.this,
                                        "Please edit SimpleMediaPlayerActivity Activity, "
                                                + "and set the path variable to your media file path."
                                                + " Your media file must be stored on sdcard.",
                                        Toast.LENGTH_LONG).show();

                    }
                    break;
                case STREAM_VIDEO:
                    /*
                     * TODO: Set path variable to progressive streamable mp4 or
                     * 3gpp format URL. Http protocol should be used.
                     * Mediaplayer can only play "progressive streamable
                     * contents" which basically means: 1. the movie atom has to
                     * precede all the media data atoms. 2. The clip has to be
                     * reasonably interleaved.
                     *
                     */
                    path = "";
                    if (path == "") {
                        // Tell the user to provide a media file URL.
                        Toast
                                .makeText(
                                        SimpleMediaPlayerActivity.this,
                                        "Please edit SimpleMediaPlayerActivity Activity,"
                                                + " and set the path variable to your media file URL.",
                                        Toast.LENGTH_LONG).show();

                    }

                    break;
                default:
                    break;
            }

            path = "http://resource.news.mn/politics/video/2011/1/54557d3baf97cf85/9bd9185c6cd73213.flv";
            // Create a new media player and set the listeners
            mMediaPlayer = new MediaPlayer();
            mMediaPlayer.setDisplay(holder);
            mMediaPlayer.setOnBufferingUpdateListener(this);
            mMediaPlayer.setOnCompletionListener(this);
            mMediaPlayer.setOnPreparedListener(this);
            mMediaPlayer.setOnVideoSizeChangedListener(this);
            mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);

            Runnable r = new Runnable() {
                public void run() {
                    try {
                        mMediaPlayer.setDataSource(path);
                    } catch (IOException e) {
                        Log.e(TAG, e.getMessage(), e);
                    }
                    try {
                        mMediaPlayer.prepare();
                        mMediaPlayer.start();
                    } catch (IOException e) {
                        e.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.
                    }
                    Log.v(TAG, "Duration:  ===>" + mMediaPlayer.getDuration());
                }
            };
            new Thread(r).start();

        } catch (Exception e) {
            Log.e(TAG, "error: " + e.getMessage(), e);
        }
    }

    public void onBufferingUpdate(MediaPlayer arg0, int percent) {
        Log.d(TAG, "onBufferingUpdate percent:" + percent);

    }

    public void onCompletion(MediaPlayer arg0) {
        Log.d(TAG, "onCompletion called");
    }

    public void onVideoSizeChanged(MediaPlayer mp, int width, int height) {
        Log.v(TAG, "onVideoSizeChanged called");
        if (width == 0 || height == 0) {
            Log.e(TAG, "invalid video width(" + width + ") or height(" + height + ")");
            return;
        }
        mIsVideoSizeKnown = true;
        mVideoWidth = width;
        mVideoHeight = height;
        if (mIsVideoReadyToBePlayed && mIsVideoSizeKnown) {
            startVideoPlayback();
        }
    }

    public void onPrepared(MediaPlayer mediaplayer) {
        Log.d(TAG, "onPrepared called");
        mIsVideoReadyToBePlayed = true;
        if (mIsVideoReadyToBePlayed && mIsVideoSizeKnown) {
            startVideoPlayback();
        }
    }

    public void surfaceChanged(SurfaceHolder surfaceholder, int i, int j, int k) {
        Log.d(TAG, "surfaceChanged called");

    }

    public void surfaceDestroyed(SurfaceHolder surfaceholder) {
        Log.d(TAG, "surfaceDestroyed called");
    }


    public void surfaceCreated(SurfaceHolder holder) {
        Log.d(TAG, "surfaceCreated called");
        playVideo(extras.getInt(MEDIA));
    }

    @Override
    protected void onPause() {
        super.onPause();
        releaseMediaPlayer();
        doCleanUp();
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        releaseMediaPlayer();
        doCleanUp();
    }

    private void releaseMediaPlayer() {
        if (mMediaPlayer != null) {
            mMediaPlayer.release();
            mMediaPlayer = null;
        }
    }

    private void doCleanUp() {
        mVideoWidth = 0;
        mVideoHeight = 0;
        mIsVideoReadyToBePlayed = false;
        mIsVideoSizeKnown = false;
    }

    private void startVideoPlayback() {
        Log.v(TAG, "startVideoPlayback");
        holder.setFixedSize(mVideoWidth, mVideoHeight);
        mMediaPlayer.start();
    }
}

Javascript same code

Санаа авхаар зарим нэг script үүд байна

//=======================================================

// 입력값 검사 관련 함수

//

function isNumeric(el){var pattern=/^(-{0,1})([0-9]+)(\.{0,1})([0-9]*)$/;return (pattern.test(el.value)) ? true : doError(el,"숫자형식을 입력하세요.");}

function isEnglish(el){var pattern=/^([a-zA-Z ]+)$/;return (pattern.test(el.value)) ? true : doError(el,"영문자를 입력하세요.");}

function isEngNumeric(el){var pattern=/^([0-9a-zA-Z ]+)$/;return (pattern.test(el.value)) ? true : doError(el,"영문자와 숫자를 입력하세요.");}

function isNotNull(el,msg){return (el.value.replace(/ /g, "").length>0) ? true : doError(el,msg);}

function isGoodID(el){var pattern=/^[a-zA-Z]{1}[_a-zA-Z0-9-]{3,}$/;return (pattern.test(el.value)) ? true : doError(el,"아이디는 영문자로 시작하고 영숫자, 하이픈(-), 언더바(_)를 조합하여 4자이상으로 입력하세요.");}

function isGoodPass(el){var pattern=/^[_a-zA-Z0-9!#$%&()*+\.:;<=>?@{|}~-]{4,}$/;return (pattern.test(el.value)) ? true : doError(el,"비밀번호는 영숫자와 특수문자(!#$%&()*+-.:;<=>?@^_{|}~)를 조합하여 4자이상으로 입력하세요.");}

function isEmail(el){var pattern=/^[_a-zA-Z0-9-\.]+@[\.a-zA-Z0-9-]+\.[a-zA-Z]+$/;return (pattern.test(el.value)) ? true : doError(el,"올바른 메일주소를 입력하세요.");}

function isDomain(el){var pattern=/^(http:\/\/)?(www\.)?([_가-힝a-zA-Z0-9-]+\.)+[a-zA-Z]{2,3}(\/[_가- 힝a-zA-Z0-9-]+)*/i;return (pattern.test(el.value)) ? true : doError(el,"올바른 URL을 입력하세요.");}

function isPhone(el, value){var pattern=/^([0]{1}[0-9]{1,3})-?([1-9]{1}[0-9]{2,3})-?([0-9]{4})$/; var num=value?value:el.value;if(pattern.test(num)){return true;}else{return doError(el,"올바른 전화번호를 입력하세요.");}}

function isRadioChecked(el, msg){var b=false;if(el.length){for(var i=0; i<el.length; i++)if(el[i].checked){b=true; break}}else b=el.checked; return b ? true : doError(el,msg);}

function isSelected(el, msg, n){if(!n)n=0; return el.selectedIndex>n ? true : doError(el,msg);}

//-------------------------------------------------------

function doError(el,msg){alert(msg);try{el.value="";el.focus();}catch(e){} return false;}

function numOnly(e){var key = (window.event) ? event.keyCode : (e.keyCode!=0 ? e.keyCode : e.charCode); if((key!=8&&key!=9&&key!=13&&key!=46&&key<48)||(key>57)){ if(window.event) e.returnValue=false; else e.preventDefault(); }}

function nextInput(e1,e2,m){if(e1.value.length==m) e2.focus();}

//-------------------------------------------------------

function isJumin(el,value){var pattern=/^([0-9]{6})-?([0-9]{7})$/;var num=value?value:el.value;var msg="올바른 주민등록번호를 입력하세요.";

if(!pattern.test(num)) return doError(el,msg);num=RegExp.$1+RegExp.$2;var sum=0;var last=num.charCodeAt(12)-0x30;var bases="234567892345";

for(var i=0;i<12;i++){if(isNaN(num.substring(i,i+1))) return doError(el,msg);sum+=(num.charCodeAt(i)-0x30)*(bases.charCodeAt(i)-0x30);}

var mod=sum%11;return ((11-mod)%10==last) ? true : doError(el,msg);}

function checkJumin(e1,e2){if(e1.value.length>0 && e2.value.length>0){if(!isJumin(e1,e1.value+e2.value)){e2.value="";return false;} else return true;} else return false;}

//-------------------------------------------------------

function isBusinessNum(el,value){var pattern=/^([0-9]{3})-?([0-9]{2})-?([0-9]{5})$/;var num=value?value:el.value;var msg = "올바른 사업자등록번호를 입력하세요.";

if(!pattern.test(num)) return doError(el,msg);num=RegExp.$1+RegExp.$2+RegExp.$3;

var sum=0;var getlist=new Array(10);var chkvalue=new Array("1","3","7","1","3","7","1","3","5");

for(var i=0;i<10;i++){getlist[i]=num.substring(i,i+1);} for(var i=0;i<9;i++){sum+=getlist[i]*chkvalue[i];}

sum=sum+parseInt((getlist[8]*5)/10);sidliy=sum%10;sidchk=0;if(sidliy!=0){sidchk=10-sidliy;}else{sidchk=0;}

return (sidchk==getlist[9]) ? true : doError(el,msg);}

//-------------------------------------------------------

function isForeignNum(el,value){var pattern=/^([0-9]{6})-?([0-9]{7})$/;var num=value?value:el.value;var msg = "올바른 외국인등록번호를 입력하세요.";

if(!pattern.test(num)) return doError(el,msg);num=RegExp.$1+RegExp.$2;

if((num.charAt(6)=="5")||(num.charAt(6)=="6")) birthYear="19"; else if((num.charAt(6)=="7")||(num.charAt(6)=="8")) birthYear="20";

else if((num.charAt(6)=="9")||(num.charAt(6)=="0")) birthYear="18"; else return doError(el, msg);

birthYear+=num.substr(0,2); birthMonth=num.substr(2,2)-1; birthDate=num.substr(4,2); birth=new Date(birthYear, birthMonth, birthDate);

if(birth.getYear()%100!=num.substr(0,2)||birth.getMonth()!=birthMonth||birth.getDate()!=birthDate) return doError(el,msg);

var sum=0;var odd=0;var buf=new Array(13);for(i=0;i<13;i++){buf[i]=parseInt(num.charAt(i));}

odd=buf[7]*10+buf[8];if(odd%2!=0) return doError(el,msg);if((buf[11]!=6)&&(buf[11]!=7)&&(buf[11]!=8)&&(buf[11]!=9)) return doError(el,msg);

multipliers=[2,3,4,5,6,7,8,9,2,3,4,5];for(i=0,sum=0;i<12;i++){sum+=(buf[i]*=multipliers[i]);}

sum=11-(sum%11);if(sum>=10) sum-=10; sum+=2;if(sum>=10) sum-=10; return (sum==buf[12]) ? true : doError(el,msg);}

//-------------------------------------------------------

function isEmailList(el){el.value=el.value.replace(/ /g,'').replace(/(,)+/g,',').replace(/^,/,'').replace(/,$/,'');

var pattern=/^[_a-zA-Z0-9-\.]+@[\.a-zA-Z0-9-]+\.[a-zA-Z]+$/; if(el.value.length>0){var emails = el.value.split(",");

for(var i=0; i<emails.length; i++){if(!pattern.test(emails[i])){alert(emails[i] + " 는 올바른 메일주소가 아닙니다."); el.focus(); return false;}} return true;}return true;}

//-------------------------------------------------------

function isValidExt(el, p){var pt = "," + p.replace(/ /g,'') + ",";if(!el || el.value.replace(/ /g,'').length==0) return false;

var ext = el.value.toLowerCase().substring(el.value.lastIndexOf(".")+1);

if(pt.indexOf("," + ext + ",")<0){alert("올바른 파일형식이 아닙니다."); el.select();

if(window["getSelection"]){if(Browser.safari){window.getSelection().collapse();}else{window.getSelection().removeAllRanges();}}

else if((document.selection)&&(document.selection.clear)){document.selection.clear();} return false;} else return true;}

//-------------------------------------------------------

function isImageExt(el){return isValidExt(el, "jpg,jpeg,gif,png");}

function trim(s){return s ? s.replace(/ +$/,'').replace(/^ +/g,'') : '';}

//=======================================================

// 이미지 관련 함수

//

function imageReSize(el,maxWidth,maxHeight, fit){var width=el.width;var height=el.height;

if(maxWidth<0)maxWidth=0;if(maxHeight<0)maxHeight=0;

if(maxWidth==0&&maxHeight>0&&height>maxHeight){height=height/maxHeight;width=width/(height/maxHeight);}

else if(maxHeight==0&&maxWidth>0&&width>maxWidth){width=width/maxWidth;height=height/(width/maxWidth);}

else if(maxWidth>0&&maxHeight>0){if(width>maxWidth){height=height/(width/maxWidth);width=maxWidth;}

if(height>maxHeight){width=width/(height/maxHeight);height=maxHeight;}

if(fit && width<maxWidth && height<maxHeight){

if(maxWidth>maxHeight){width=width*(maxHeight/height);height=maxHeight;}

else{height=height*(maxWidth/width);width=maxWidth;}

if(width>maxWidth){height=height/(width/maxWidth);width=maxWidth;}

if(height>maxHeight){width=width/(height/maxHeight);height=maxHeight;}}}el.width=width;el.height=height;}

//=======================================================

// Form 관련 함수

//

function getRequestURI(){var u=location.href; return u.indexOf('?')>0 ? u.substring(u.lastIndexOf('/')+1, u.indexOf('?')) : u.substring(u.lastIndexOf('/')+1);}

function setSelectBox(id, value){var el = document.getElementById(id);

if(!el){var els=document.getElementsByName(id);if(els && els.length) el=els[0];}

if(el&&el.length){for(var i=0; i<el.length; i++) el[i].selected=(el[i].value==value);}}

function setRadio(id, value){var el = document.getElementsByName(id);

if(el&&el.length){for(var i=0; i<el.length; i++) el[i].checked=(el[i].value==value);}}

function getRadio(el){if(el.length){for(var i=0;i<el.length;i++)if(el[i].checked){return el[i].value;}}else if(el.checked) return el.value; return '';}

function setCheckbox(id, value){var el = document.getElementById(id);

if(!el){var els=document.getElementsByName(id);if(els && els.length) el=els[0];}

if(el){el.checked=(el.value==value);}}

function setBgColor(el,c){el.style.backgroundColor=c;}

function setBgColorOver(el,c){if(c&&c.length>0)el.style.cursor='pointer'; el.style.backgroundColor=c;}

function deleteAll(query) {

var str = "";

var checkIdxs = document.getElementsByName("checkIdx");

for(var i=0; i<checkIdxs.length; i++) { if(checkIdxs[i].checked) str = str + "," + checkIdxs[i].value; }

if(str.length>1) {

if(confirm("삭제하시겠습니까?")) location.href = getRequestURI() + query + "&mode=delete&idxs=" + str.substr(1);

} else alert("삭제할 항목을 먼저 선택하세요.");

}

function deleteItem(query, idx) {

if(confirm("삭제하시겠습니까?")) location.href = getRequestURI() + query + "&mode=delete&idx=" + idx;

}

function checkAll(el) {

if(el.name=="checkIdxAll") {

var b = el.checked;

var c = el.form.checkIdx; if(!c) return;

if(c.length) { for(var i=c.length-1; i>=0; i--) c[i].checked = b;

} else c.checked = b;

} else if(!el.checked && el.form.checkIdxAll) el.form.checkIdxAll.checked = false;

}

function checkEnter(e, fn) {

var key = window.event ? event.keyCode : e.keyCode;

if(key==13) {

var el = window.event ? event.srcElement : e.target;

if(el && el.value.replace(/ /g,'').length>0) eval(fn);

if(window.event) event.returnValue=false; else e.preventDefault();

}

}

//=======================================================

// 배너 스크롤 처리 함수

//

var isBannerScroll = true;

var bannerFirstScrollY = new Array();

var bannerLastScrollY = new Array(0, 0, 0, 0, 0);

function bannerLayerScroll(n, s) {

if(n<0 || n>=bannerLastScrollY.length) return;

obj = (document.getElementById) ? document.getElementById(s) : (document.all) ? document.all[s] : document.layers[s];

if(!obj) return;

if (typeof window.pageYOffset != 'undefined') {

diffY = window.pageYOffset;

diffH = window.scrollMaxY ? window.innerHeight + window.scrollMaxY : document.body.scrollHeight;

} else if (document.compatMode && document.compatMode != 'BackCompat') {

diffY = document.documentElement.scrollTop;

diffH = document.documentElement.scrollHeight;

} else {

diffY = document.body.scrollTop;

diffH = document.body.scrollHeight;

}

if(obj.offsetParent&&obj.offsetParent.scrollHeight>0) diffH = obj.offsetParent.scrollHeight;

if(!bannerFirstScrollY[n]) bannerFirstScrollY[n] = document.all ? obj.style.pixelTop : parseInt(obj.style.top);

if(!isBannerScroll) diffY = bannerFirstScrollY[n];

if(diffY<0) diffY = 0;

if(diffY != bannerLastScrollY[n]) {

percent = .1 * (diffY-bannerLastScrollY[n]);

if(percent>0) percent = Math.ceil(percent); else percent = Math.floor(percent);

if(diffH>(obj.offsetTop+ obj.offsetHeight + percent)) {

if(document.all) obj.style.pixelTop += percent;

else obj.style.top = (parseInt(obj.style.top) + percent) + 'px';

bannerLastScrollY[n] = bannerLastScrollY[n] + percent;

}

}

}

//=======================================================

// 클립보드 처리

//

function copyClip(meintext) {

if (window.clipboardData) { // IE일 경우

window.clipboardData.setData("Text", meintext);

} else if (window.netscape) { // NS일 경우

netscape.security.PrivilegeManager.enablePrivilege('UniversalXPConnect');

var clip = Components.classes['@mozilla.org/widget/clipboard;1'].createInstance(Components.interfaces.nsIClipboard);

if (!clip) return false;

var trans = Components.classes['@mozilla.org/widget/transferable;1'].createInstance(Components.interfaces.nsITransferable);

if (!trans) return false;

trans.addDataFlavor('text/unicode');

var str = new Object(); var len = new Object();

var str = Components.classes["@mozilla.org/supports-string;1"].createInstance(Components.interfaces.nsISupportsString);

var copytext = meintext; // 로컬변수에 복사

str.data = copytext;

trans.setTransferData("text/unicode",str,copytext.length*2);

var clipid = Components.interfaces.nsIClipboard;

if (!clipid) return false;

clip.setData(trans,null,clipid.kGlobalClipboard);

}

alert("저장되었습니다.\n원하는곳에 붙여넣기를 하세요.");

return false;

}

//=======================================================

// 포커스 처리

//

var mouseOverColor = "#666666";

var mouseOverBgColor = "#FFFFFF";

var nowFocusEl = '';

function inputIn(e) { oSrc=(window.event) ? event.srcElement : e.target;

if(oSrc && isFocusElement(oSrc)){nowFocusEl=oSrc.name;oSrc.style.color=mouseOverColor;oSrc.style.backgroundColor=mouseOverBgColor;}}

function inputOut(e) { oSrc=(window.event) ? event.srcElement : e.target;

if(oSrc && isFocusElement(oSrc)){nowFocusEl='';oSrc.style.color="";oSrc.style.backgroundColor="";}}

if(document.all){document.onfocusin = inputIn; document.onfocusout = inputOut;}

function mouseIn(e) { oSrc=(window.event) ? event.srcElement : e.target;

if(oSrc && isFocusElement(oSrc)){oSrc.style.color=mouseOverColor;oSrc.style.backgroundColor=mouseOverBgColor;}

if(oSrc=hasClassName(oSrc,"mouse")) oSrc.style.backgroundColor=mouseOverBgColor;}

function mouseOut(e) { oSrc=(window.event) ? event.srcElement : e.target;

if(oSrc && isFocusElement(oSrc) && nowFocusEl!=oSrc.name){oSrc.style.color="";oSrc.style.backgroundColor="";}

if(oSrc=hasClassName(oSrc,"mouse")) oSrc.style.backgroundColor="";}

function hasClassName(el, n){while(el){if(el.className==n) return el;el=el.parentNode;} return false;}

function isFocusElement(el){

return el.type=="text" || el.type=="password" || el.type=="file" || el.tagName=="TEXTAREA" || el.tagName=="SELECT";

}

// 포커스처리 이벤트 시작

//if(document.all){document.onmouseover = mouseIn; document.onmouseout = mouseOut;}

//=======================================================

// 기타

//

function printWindow() {

window.open("/common/print.php", "printWindow", "width=700, height=500, status=no, scrollbars=yes");

}

function IFramResize(d) {

var el = document.getElementById(d);

if(el && el.tagName=="IFRAME") {

var oDoc = el.contentDocument || el.contentWindow.document;

el.height = oDoc.body.scrollHeight + 30;

}

}

function setCookie(name, value, expiredays) {

var todayDate = new Date();

todayDate.setDate(todayDate.getDate() + expiredays);

document.cookie = name + "=" + escape(value) + "; path=/; expires=" + todayDate.toGMTString() + ";";

} 

 

 

make flash

function MakeFlash(Url,Width,Height){

var s = "<object classid='clsid:D27CDB6E-AE6D-11cf-96B8-444553540000' "

+ "codebase='https://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,29,0' "

+ "width='" + Width + "' height='" + Height + "'>\n"

+ "<param name='movie' value='" + Url + "'>\n"

+ "<param name='quality' value='high' />\n"

+ "<param name='menu' value='false'>\n"

+ "<param name='wmode' value='transparent'>\n"

+ "<embed src='" + Url + "' quality='high' pluginspage='https://www.macromedia.com/go/getflashplayer' "

+ "type='application/x-shockwave-flash' wmode='transparent' width='" + Width + "' height='" + Height + "'></embed>\n"

+ "</object>";

document.writeln(s);

}

check userAgent

var Browser = new Object();

Browser.win=(navigator.appVersion.indexOf('Win')!=-1);

Browser.mac=(navigator.appVersion.indexOf('Mac')!=-1);

Browser.lin=(navigator.userAgent.indexOf('Linux')!=-1);

if(!document.layers){

  Browser.opera=(navigator.userAgent.indexOf('Opera')!=-1);

  Browser.konq=(navigator.userAgent.indexOf('Konqueror')!=-1);

  Browser.safari=(navigator.userAgent.indexOf('Safari')!=-1);

  Browser.mozilla=(navigator.userAgent.indexOf('Gecko')!=-1&&!Browser.safari&&!Browser.konq);

  Browser.ie=(document.all&&!Browser.opera);

  Browser.ie4=(Browser.ie&&!document.getElementById);

  Browser.ie5x=(document.all&&document.getElementById);

  Browser.ie5mac=(Browser.mac&&Browser.ie5x);

  Browser.ie5xwin=(Browser.win&&Browser.ie5x);

} 

Get Selection 

var textarea = document.getElementById("textarea");

// code for IE

if (document.selection)

{

    textarea.focus();

    var sel = document.selection.createRange();

    // alert the selected text in textarea

    alert(sel.text);

    // Finally replace the value of the selected text with this new replacement one

    sel.text = '<b>' + sel.text + '</b>';

} else {   

// code for Mozilla

  var len = textarea.value.length;

   var start = textarea.selectionStart;

   var end = textarea.selectionEnd;

   var sel = textarea.value.substring(start, end);

   // This is the selected text and alert it

   alert(sel);

  var replace = '<b>' + sel + '<b>';

  // Here we are replacing the selected text with this one

 textarea.value =  textarea.value.substring(0,start) + replace + textarea.value.substring(end,len);

}

Simple drop down menu javascript prototype

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<title>Drop-Down Menu</title>
<meta name="keywords" content="">
<meta name="description" content="">
<link rel="stylesheet" type="text/css" href="css/default.css">

<!-- dd menu -->
<script type="text/javascript">
<!--
var timeout         = 500;
var closetimer = 0;
var ddmenuitem      = 0;

// open hidden layer
function mopen(id)
{
// cancel close timer
mcancelclosetime();

// close old layer
if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';

// get new layer and show it
ddmenuitem = document.getElementById(id);
ddmenuitem.style.visibility = 'visible';

}
// close showed layer
function mclose()
{
if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
}

// go close timer
function mclosetime()
{
closetimer = window.setTimeout(mclose, timeout);
}

// cancel close timer
function mcancelclosetime()
{
if(closetimer)
{
window.clearTimeout(closetimer);
closetimer = null;
}
}

// close layer when click-out
document.onclick = mclose;
// -->
</script>

</head>
<body>

<h1>DropDown Menu</h1>

<p>This menu can be located anywhere on a page:</p>

<ul id="sddm">
<li><a href="#" onmouseover="mopen('m1')" onmouseout="mclosetime()">Home</a>
<div id="m1" onmouseover="mcancelclosetime()" onmouseout="mclosetime()">
<a href="#">HTML DropDown</a>
<a href="#">DHTML DropDown menu</a>
<a href="#">JavaScript DropDown</a>
<a href="#">DropDown Menu</a>
<a href="#">CSS DropDown</a>
</div>
</li>
<li><a href="#" onmouseover="mopen('m2')" onmouseout="mclosetime()">Download</a>
<div id="m2" onmouseover="mcancelclosetime()" onmouseout="mclosetime()">
<a href="#">ASP Dropdown</a>
<a href="#">Pulldown menu</a>
<a href="#">AJAX dropdown</a>
<a href="#">DIV dropdown</a>
</div>
</li>
<li><a href="#" onmouseover="mopen('m3')" onmouseout="mclosetime()">Order</a>
<div id="m3" onmouseover="mcancelclosetime()" onmouseout="mclosetime()">
<a href="#">Visa Credit Card</a>
<a href="#">Paypal</a>
</div>
</li>
<li><a href="#" onmouseover="mopen('m4')" onmouseout="mclosetime()">Help</a>
<div id="m4" onmouseover="mcancelclosetime()" onmouseout="mclosetime()">
<a href="#">Download Help File</a>
<a href="#">Read online</a>
</div>
</li>
<li><a href="#" onmouseover="mopen('m5')" onmouseout="mclosetime()">Contact</a>
<div id="m5" onmouseover="mcancelclosetime()" onmouseout="mclosetime()">
<a href="#">E-mail</a>
<a href="#">Submit Request Form</a>
<a href="#">Call Center</a>
</div>
</li>
</ul>
<div style="clear:both"></div>

<div style="clear:both"></div>
<p>If you are looking for advanced script, see the <a href="http://javascript-array.com/scripts/multi_level_drop_down_menu/?sddm">Multi-Level Drop-Down Menu</a> based on simple treelike unordered list.
<p>If you want to use this script on your page, please place link to http://javascript-array.com at one of your pages.
<p>&copy; Copyright 2006-2007 <a href="http://javascript-array.com/">javascript-array.com</p>

</body>
</html>





default.css







#sddm
{ margin: 0;
padding: 0;
z-index: 30}

#sddm li
{ margin: 0;
padding: 0;
list-style: none;
float: left;
font: bold 11px arial}

#sddm li a
{ display: block;
margin: 0 1px 0 0;
padding: 4px 10px;
width: 60px;
background: #5970B2;
color: #FFF;
text-align: center;
text-decoration: none}

#sddm li a:hover
{ background: #49A3FF}

#sddm div
{ position: absolute;
visibility: hidden;
margin: 0;
padding: 0;
background: #EAEBD8;
border: 1px solid #5970B2}

#sddm div a
{ position: relative;
display: block;
margin: 0;
padding: 5px 10px;
width: auto;
white-space: nowrap;
text-align: left;
text-decoration: none;
background: #EAEBD8;
color: #2875DE;
font: 11px arial}

#sddm div a:hover
{ background: #49A3FF;
color: #FFF}

ArgoUML class diagram simple