function smartRollover() {
	if(document.getElementsByTagName) {
		var images = document.getElementsByTagName("img");

		for(var i=0; i < images.length; i++) {
			if(images[i].src.match("_off."))
			{
				images[i].onmouseover = function() {
					this.setAttribute("src", this.getAttribute("src").replace("_off.", "_on."));
				}
				images[i].onmouseout = function() {
					this.setAttribute("src", this.getAttribute("src").replace("_on.", "_off."));
				}
			}
		}
	}
}


if(window.addEventListener) {
	window.addEventListener("load", smartRollover, false);
}
else if(window.attachEvent) {
	window.attachEvent("onload", smartRollover);
}

/**********************************************************
* mapchange */

function mainmap(i) {
	var src = document.getElementById('mainareamap').getAttribute('src');
	var fsrc = src.substring(0, src.lastIndexOf('/'));
	if(!i) {
		document.getElementById('mainareamap').setAttribute('src', fsrc + '/map.gif');
	} else {
		document.getElementById('mainareamap').setAttribute('src', fsrc + '/' + i + '.gif');
	}
}