<!-- 
browser_name = navigator.appName; browser_ver = parseInt(navigator.appVersion);
if ((browser_name == "Netscape" && browser_ver >= 3) || (browser_name == "Microsoft Internet Explorer" && browser_ver >=4)) 
version = "yes";else version = "no"; if (version == "yes") { btns = new Array(15); for (c=0; c<=15; c++) { btns[c] = new Image(); } 
btns[0].src = "image/home-a.jpg"; 
btns[1].src = "image/about-a.jpg"; 
btns[2].src = "image/agenda-a.jpg";
btns[3].src = "image/panels-a.jpg"; 
btns[4].src = "image/speakers-a.jpg"; 
btns[5].src = "image/register-a.jpg"; 
btns[6].src = "image/contact-a.jpg"; 
btns[7].src = "image/about-h-a.jpg"; 
btns[8].src = "image/home-o.jpg"; 
btns[9].src = "image/about-o.jpg"; 
btns[10].src = "image/agenda-o.jpg";
btns[11].src = "image/panels-o.jpg"; 
btns[12].src = "image/speakers-o.jpg"; 
btns[13].src = "image/register-o.jpg"; 
btns[14].src = "image/contact-o.jpg"; 
btns[15].src = "image/about-h-o.jpg"; 

nm = new Array("home", "about", "agenda", "panels", "speakers", "register", "contact", "about hyderabad"); }
function btn_chg(des,num) { if (version == "yes") {document.images[nm[des]].src = btns[num].src;}}
function btn_rtn(des,num) { if (version == "yes") {document.images[nm[des]].src = btns[num].src;}}
// -->

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    x3 = window.scrollX || 0;
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    var x = Math.max(x1, Math.max(x2, x3));
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