function initRollovers(){
	var images = $('IMG.rollover');
	$.each(images, function(index, value){
		var img = $(value);
		img.hover(
			function(){
				this.src = this.src.replace("-off","-on");
			},
			function(){
				this.src = this.src.replace("-on","-off");
			}
		);
	});
}