//roll over image
var roimg = new Object();
function defineRoi(){
	if(!document.getElementById)return;
	if(!document.images) return;
	if(ua.n4)return;
	var preloadRoi = new Array();
	for(i=0;i<document.images.length;i++){
		var tempid = new String();
		tempid = document.images[i].id;
		if(tempid.indexOf("ro_") == 0){
			var basesrc = document.images[tempid].src;
			var imgtype = basesrc.substring(basesrc.lastIndexOf('.'));
			var basename = basesrc.substring(0,basesrc.length - imgtype.length);
			var tempobj = new Object();
			tempobj.u = basesrc;
			tempobj.o = basename + 'o' + imgtype;
			tempobj.s = basename + 's' + imgtype;
			roimg[tempid] = tempobj;
			preloadRoi[preloadRoi.length] = tempobj.o;
		}
	}
	preloadImgs(preloadRoi);
}
defineRoi();

function kmout(name){
	if(!document.getElementById)return;
	if(!roimg[name].u)return;
	swapImg(name,roimg[name].u);
}

function kmover(name){
	if(!document.getElementById)return;
	if(!roimg[name].o)return;
	swapImg(name,roimg[name].o);
}