function popUp(URL,wwidth, wheight) {
day = new Date();
id = day.getTime();
eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=1,width=" + wwidth + ",height=" + wheight + ",left = 312,top = 184');");
}

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadMapImages() {
	if (document.images) {
		eparegions_01_EPA10_over = newImage("images/epamap/eparegions_01-EPA10_over.gif");
		eparegions_01_EPA9_over = newImage("images/epamap/eparegions_01-EPA9_over.gif");
		eparegions_01_EPA8_over = newImage("images/epamap/eparegions_01-EPA8_over.gif");
		eparegions_01_EPA6_over = newImage("images/epamap/eparegions_01-EPA6_over.gif");
		eparegions_01_EPA7_over = newImage("images/epamap/eparegions_01-EPA7_over.gif");
		eparegions_01_EPA5_over = newImage("images/epamap/eparegions_01-EPA5_over.gif");
		eparegions_01_EPA4_over = newImage("images/epamap/eparegions_01-EPA4_over.gif");
		eparegions_01_EPA3_over = newImage("images/epamap/eparegions_01-EPA3_over.gif");
		eparegions_01_EPA2_over = newImage("images/epamap/eparegions_01-EPA2_over.gif");
		eparegions_01_EPA1_over = newImage("images/epamap/eparegions_01-EPA1_over.gif");
		preloadFlag = true;
	}
}