// JavaScript Document

function getElementsByClass(searchClass,node,tag) {

	var classElements = new Array();
	if (node == null)
		node = document;
	if (tag == null)
		tag = '*';
	var els = node.getElementsByTagName(tag);
	var elsLen = els.length;
	var pattern = new RegExp("(^|\\s)"+searchClass+"(\\s|$)");
	var j = 0;
	for (i = 0; i < elsLen; i++) {
		if (pattern.test(els[i].className) ) {
			classElements[j] = els[i];
			j++;
		}
	}
	return classElements;
} // function getElementsByClass(searchClass,node,tag)

function initRollovers()
{
	var rollOvers = new Array();
	rollOvers = getElementsByClass("rolloverImage");
	
	var rollOversLen = rollOvers.length;
	var cacheImages = new Array(rollOversLen);

	for (i=0; i<rollOversLen;i++)
	{
		cacheImages[i] = new Image();
		cacheImages[i].src = rollOvers[i].src.replace("_off","_on");

		rollOvers[i].onmouseover = function()
		{
			this.src= this.src.replace("_off","_on");	
		}
		rollOvers[i].onmouseout = function()
		{
			this.src = this.src.replace("_on","_off");	
		}
		
	}// for (i=0; i<rollOversLen;i++)	
	return true;
} // function initRollovers()