var mouseOvers = new Array();
var mouseOuts = new Array();

function MouseOvers (section) {
		if (document.getElementById(section)) { 
				var nav = document.getElementById(section);
				var imgs = nav.getElementsByTagName("img");


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

						if (imgs[i].src.search(/_on.gif$/) == -1) { 
								imgs[i].onmouseover = function () {
										this.src = mouseOvers[this.number + section].src;
								}
								imgs[i].onmouseout = function () {
										this.src = mouseOuts[this.number + section].src;
								}
						}
						var suffix = imgs[i].src.substring(imgs[i].src.lastIndexOf('.'));
						mouseOuts[i + section] = new Image();
						mouseOuts[i + section].src = imgs[i].src;
						mouseOvers[i + section] = new Image();
						mouseOvers[i + section].src = imgs[i].src.substring(0, imgs[i].src.lastIndexOf('.')) + "_on" + suffix;
						imgs[i].number = i;
				}
		}
}