onload = function() {
	for(i=0; i < 5; i++) {
		tab = document.getElementById("tab"+(i+1));
		tab.image = tab.src;
		tab.onmouseover = function() {
			this.src = "../graphics/tab"+this.name+"-hover.png";
		}
		tab.onmouseout = function() {
			this.src = this.image;
		}

	}
}
function hovermap(obj) {
	document.getElementById("mapHover").className = obj.alt.replace(" ","").toLowerCase();
	document.getElementById("mapHover").src = "../graphics/find-map-"+obj.alt.replace(" ","").toLowerCase()+".png";
	obj.onmouseout = function () {
		document.getElementById("mapHover").className = "";
		document.getElementById("mapHover").src = "../graphics/blank.png";
	}
}
function hoverregister(x,y,obj) {
	document.getElementById("registerButton").parentNode.style.padding = y+"px 0px 0px "+x+"px";
	document.getElementById("registerButton").style.visibility = "visible";
	obj.onmouseout = function() {
		document.getElementById("registerButton").style.visibility = "hidden";
	}
}