// JavaScript Document
var imgBtnRollovers = {
	init: function() {
		var buttons = document.getElementsByTagName("input");
		for (var i=0; i<buttons.length; i++) {
			var type = buttons[i].getAttribute("type");
			if (type == "image") {
				Core.addEventListener(buttons[i], "mouseover", imgBtnRollovers.imgOn);
				Core.addEventListener(buttons[i], "mouseout", imgBtnRollovers.imgOff);
			}
		}
	},
	imgOn : function(event) {
		var mySrc = this.src;
		mySrc = mySrc.replace(/\.gif/,"_over.gif");
		this.setAttribute("src", mySrc);
	},
	imgOff : function(event) {
		var mySrc = this.src;
		mySrc = mySrc.replace(/_over\.gif/,".gif");
		this.setAttribute("src", mySrc);
	}
};

Core.start(imgBtnRollovers);