function smartRollover() {
	if(document.getElementsByTagName) {
		var images = document.getElementsByTagName("img");

		for(var i=0; i < images.length; i++) {
			if(images[i].getAttribute("src").match("_off."))
			{
				images[i].onmouseover = function() {
					this.setAttribute("src", this.getAttribute("src").replace("_off.", "_on."));
				}
				images[i].onmouseout = function() {
					this.setAttribute("src", this.getAttribute("src").replace("_on.", "_off."));
				}
			}
		}
	}
}

if(window.addEventListener) {
	window.addEventListener("load", smartRollover, false);
}
else if(window.attachEvent) {
	window.attachEvent("onload", smartRollover);
}


//backToTop
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); 
	} 
}