/* JavaScript Rollover */
<!-- 
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(18); for (c=0; c<=17; c++) { btns[c] = new Image(); } 
btns[0].src = "/images/menu/home_b.png"; 
btns[1].src = "/images/menu/agenda_b.png"; 
btns[2].src = "/images/menu/keynotes_b.png"; 
btns[3].src = "/images/menu/panels_b.png"; 
btns[4].src = "/images/menu/speakers_b.png"; 
btns[5].src = "/images/menu/sponsors_b.png"; 
btns[6].src = "/images/menu/logistics_b.png"; 
btns[7].src = "/images/menu/register_b.png"; 
btns[8].src = "/images/menu/team_b.png"; 
btns[9].src = "/images/menu/home_a.png"; 
btns[10].src = "/images/menu/agenda_a.png"; 
btns[11].src = "/images/menu/keynotes_a.png"; 
btns[12].src = "/images/menu/panels_a.png"; 
btns[13].src = "/images/menu/speakers_a.png"; 
btns[14].src = "/images/menu/sponsors_a.png"; 
btns[15].src = "/images/menu/logistics_a.png"; 
btns[16].src = "/images/menu/register_a.png"; 
btns[17].src = "/images/menu/team_a.png"; 
nm = new Array("home","agenda","keynotes","panels","speakers","sponsors","logistics","register","team"); }
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+9].src;  }}
self.name="main"
// -->

/* Repair PNG Files for IE */
function correctPNG() {
	for(var i=0; i<document.images.length; i++) {
		var img = document.images[i]
		var imgName = img.src.toUpperCase()
		if (imgName.substring(imgName.length-3, imgName.length) == "PNG") {
			var imgID = (img.id) ? "id='" + img.id + "' " : ""
			var imgClass = (img.className) ? "class='" + img.className + "' " : ""
			var imgTitle = (img.title) ? "title='" + img.title + "' " : "title='" + img.alt + "' "
			var imgStyle = "display:inline-block;" + img.style.cssText 
			if (img.align == "left") imgStyle = "float:left;" + imgStyle
			if (img.align == "right") imgStyle = "float:right;" + imgStyle
			if (img.parentElement.href) imgStyle = "cursor:hand;" + imgStyle		
			var strNewHTML = "<span " + imgID + imgClass + imgTitle
			+ " style=\"" + "width:" + img.width + "px; height:" + img.height + "px;" + imgStyle + ";"
			+ "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
			+ "(src=\'" + img.src + "\', sizingMethod='image');\"></span>" 
			img.outerHTML = strNewHTML
			i = i-1
		}
	}
	// Added IE Loads
	rolloversIE.init();
}

/* Smooth Scroll Back to Top */
function backToTop() {
    var x1 = x2 = x3 = 0;
    var y1 = y2 = y3 = 0;

    if (document.documentElement) {
        x1 = document.documentElement.scrollLeft || 0;
        y1 = document.documentElement.scrollTop || 0;
    }

    if (document.body) {
        x2 = document.body.scrollLeft || 0;
        y2 = document.body.scrollTop || 0;
    }

    x3 = window.scrollX || 0;
    y3 = window.scrollY || 0;

    var x = Math.max(x1, Math.max(x2, x3));
    var y = Math.max(y1, Math.max(y2, y3));

    window.scrollTo(Math.floor(x / 2), Math.floor(y / 2));

    if (x > 0 || y > 0)
        window.setTimeout("backToTop()", 25);
}