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

		for(var i=0; i < images.length; i++) {

			if(images[i].getAttribute("src") != null){
				
				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."));
					}
				}
			
			}
			
		}

		var images = document.getElementsByTagName("input");

		for(var i=0; i < images.length; i++) {
			
			if(images[i].getAttribute("src") != null){
				
				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);
}


// topics
function topics_load(divid, type){
	
	new Ajax.Request("./cake/topics/get/"+type , {
			method: 'get',
			onComplete: displayData
		}
    );
    
    function displayData(responseHttpObj){
        $(divid).innerHTML = responseHttpObj.responseText;
    }	
	
}