function preload(aImagePaths){
	for(var i = 0; i< aImagePaths.length; i++){
		var oImage = new Image();
		oImage.src = oImage[i];
	}
}

function rollOver (up, over) {
	var up_name = up;
	$(up_name).hover(
	function () {
		$(this).addClass(over);
	},
	function () {
		$(this).removeClass(over);
	}
);}