function changeSrc(video_id)
{
document.getElementById("youtube").src='http://www.youtube.com/v/'+video_id+'&fs=1&autoplay=1';
}
<!-- 
//Browser Support Code
function ajaxFunction(){
    //document.write(formid+formgid+formgenre);
	var ajaxRequest;  // The variable that makes Ajax possible!	
	try{
		// Opera 8.0+, Firefox, Safari
		ajaxRequest = new XMLHttpRequest();
	} catch (e){
		// Internet Explorer Browsers
		try{
			ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try{
				ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e){
				// Something went wrong
				alert("Your browser broke!");
				return false;
			}
		}
	}
	// Create a function that will receive data sent from the server
	ajaxRequest.onreadystatechange = function(){
		if(ajaxRequest.readyState == 4){
			var ajaxDisplay = document.getElementById('ajaxDiv');
			ajaxDisplay.innerHTML = ajaxRequest.responseText;
		}
	}
	var id = document.getElementById('epid').value;
	var name = document.getElementById('name').value;
	var comments = document.getElementById('comments').value;
	var queryString = "?id=" + id + "&name=" + name + "&comments=" + comments;
	ajaxRequest.open("GET", "http://www.umaianime.com/addcomment.php" + queryString, true);
	ajaxRequest.send(null); 
}

//-->
/*
	This is the JavaScript file for the AJAX Suggest Tutorial

	You may use this code in your own projects as long as this 
	copyright is left	in place.  All code is provided AS-IS.
	This code is distributed in the hope that it will be useful,
 	but WITHOUT ANY WARRANTY; without even the implied warranty of
 	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
	
	For the rest of the code visit http://www.DynamicAJAX.com
	
	Copyright 2006 Ryan Smith / 345 Technical / 345 Group.	

*/
//Gets the browser specific XmlHttpRequest Object
function getXmlHttpRequestObject() {
	if (window.XMLHttpRequest) {
		return new XMLHttpRequest();
	} else if(window.ActiveXObject) {
		return new ActiveXObject("Microsoft.XMLHTTP");
	} else {
		alert("Your Browser Sucks!\nIt's about time to upgrade don't you think?");
	}
}

//Our XmlHttpRequest object to get the auto suggest
var searchReq = getXmlHttpRequestObject();

//Called from keyup on the search textbox.
//Starts the AJAX request.
function searchSuggest() {
	if (searchReq.readyState == 4 || searchReq.readyState == 0) {
		var str = escape(document.getElementById('keyword').value);
		searchReq.open("GET", 'searchSuggest.php?search=' + str, true);
		searchReq.onreadystatechange = handleSearchSuggest; 
		searchReq.send(null);
	}		
}

//Called when the AJAX response is returned.
function handleSearchSuggest() {
	if (searchReq.readyState == 4) {
		var ss = document.getElementById('search_suggest')
		ss.innerHTML = '';
		var str = searchReq.responseText.split("\n");
		for(i=0; i < str.length - 1; i++) {
			//Build our element string.  This is cleaner using the DOM, but
			//IE doesn't support dynamically added attributes.
			var suggest = '<div onmouseover="javascript:suggestOver(this);" ';
			suggest += 'onmouseout="javascript:suggestOut(this);" ';
			suggest += 'onclick="javascript:setSearch(this.innerHTML);" ';
			suggest += 'class="suggest_link">' + str[i] + '</div>';
			ss.innerHTML += suggest;
		}
	}
}

//Mouse over function
function suggestOver(div_value) {
	div_value.className = 'suggest_link_over';
}
//Mouse out function
function suggestOut(div_value) {
	div_value.className = 'suggest_link';
}
//Click function
function setSearch(value) {
	document.getElementById('keyword').value = value;
	document.getElementById('search_suggest').innerHTML = '';
}
//Browser Support Code
function getepisodes(id,page){
    //document.write(formid+formgid+formgenre);
	var ajaxRequest;  // The variable that makes Ajax possible!	
	try{
		// Opera 8.0+, Firefox, Safari
		ajaxRequest = new XMLHttpRequest();
	} catch (e){
		// Internet Explorer Browsers
		try{
			ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try{
				ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e){
				// Something went wrong
				alert("Your browser broke!");
				return false;
			}
		}
	}
	// Create a function that will receive data sent from the server
	ajaxRequest.onreadystatechange = function(){
	   if(ajaxRequest.readyState == 3){
			var ajaxDisplay = document.getElementById('episodesdiv');
			ajaxDisplay.innerHTML = "Loading......";
		}
		if(ajaxRequest.readyState == 4){
			var ajaxDisplay = document.getElementById('episodesdiv');
			ajaxDisplay.innerHTML = ajaxRequest.responseText;
		}
	}
	var queryString = "?id=" + id + "&page=" + page;
	ajaxRequest.open("GET", "ajaxepisodes.php" + queryString, true);
	ajaxRequest.send(null); 
}
//Browser Support Code
function titles(aid){
    //document.write(formid+formgid+formgenre);
	var ajaxRequest;  // The variable that makes Ajax possible!	
	try{
		// Opera 8.0+, Firefox, Safari
		ajaxRequest = new XMLHttpRequest();
	} catch (e){
		// Internet Explorer Browsers
		try{
			ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try{
				ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e){
				// Something went wrong
				alert("Your browser broke!");
				return false;
			}
		}
	}
	// Create a function that will receive data sent from the server
	ajaxRequest.onreadystatechange = function(){
		if(ajaxRequest.readyState == 4){
			var ajaxDisplay = document.getElementById('dynamictext');
			ajaxDisplay.innerHTML = ajaxRequest.responseText;
		}
	}
	var queryString = "?aid=" + aid;
	ajaxRequest.open("GET", "ajaxtitles.php" + queryString, true);
	ajaxRequest.send(null); 
}

function closediv(div){
var ajaxDisplay = document.getElementById(div);
ajaxDisplay.innerHTML = "";
}

function getupdate(id){
    //document.write(formid+formgid+formgenre);
	var ajaxRequest;  // The variable that makes Ajax possible!	
	try{
		// Opera 8.0+, Firefox, Safari
		ajaxRequest = new XMLHttpRequest();
	} catch (e){
		// Internet Explorer Browsers
		try{
			ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try{
				ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e){
				// Something went wrong
				alert("Your browser broke!");
				return false;
			}
		}
	}
	// Create a function that will receive data sent from the server
	ajaxRequest.onreadystatechange = function(){
		if(ajaxRequest.readyState == 4){
			var ajaxDisplay = document.getElementById('ajaxDiv');
			ajaxDisplay.innerHTML = ajaxRequest.responseText;
		}
	}
	var queryString = "?id=" + id;
	ajaxRequest.open("GET", "ajaxupdate.php" + queryString, true);
	ajaxRequest.send(null); 
}

function sendtodestination(url){
var ajaxDisplay = document.getElementById('redirecter');
ajaxDisplay.innerHTML = "<a href=\""+url+"\" target=\"_blank\" style=\"background:#000000;\">Click Here to Goto You Destination Page</a>";
}function geps(t,e,v){
    //document.write(formid+formgid+formgenre);
	var ajaxRequest;  // The variable that makes Ajax possible!	
	try{
		// Opera 8.0+, Firefox, Safari
		ajaxRequest = new XMLHttpRequest();
	} catch (e){
		// Internet Explorer Browsers
		try{
			ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try{
				ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e){
				// Something went wrong
				alert("Your browser broke!");
				return false;
			}
		}
	}
	// Create a function that will receive data sent from the server
	ajaxRequest.onreadystatechange = function(){
		if(ajaxRequest.readyState == 4){
			var ajaxDisplay = document.getElementById('video');
			ajaxDisplay.innerHTML = ajaxRequest.responseText;
		}
	}
	var queryString = "?t=" + t + "&e=" + e + "&v=" + v;
	ajaxRequest.open("GET", "http://www.umaianime.com/ajaxvids.php" + queryString, true);
	ajaxRequest.send(null); 
}

function altmegavid(vid){
    var ajaxDisplay = document.getElementById('video');
	vid = vid.substring(0,8);
    ajaxDisplay.innerHTML = '<object id="video" width="600" height="450" type="application/x-shockwave-flash" data="http://wwwstatic.megavideo.com/mv_player.swf?userid=cookie&v='+vid+'+++"><param value="true" name="allowFullScreen"/><param value="transparent" name="wmode"/><param value="never" name="allowscriptaccess"/><param value="internal" name="allownetworking"/><param value="http://wwwstatic.megavideo.com/mv_player.swf?userid=cookie&v='+vid+'+++" name="movie"/></object>';
}