function scaleImg(imgId, scaleBy) {
	var image = document.getElementById(imgId);
	image.width = image.width * scaleBy;
	image.height = image.height * scaleBy; 
	if ( image.useMap !== null & image.useMap !== '') {
		var mapId = image.useMap.substring(1, image.useMap.length);
		
		var imageMap = document.getElementById(mapId);
		if (imageMap !== null) {
			var as = imageMap.getElementsByTagName("area");

			for (var a in as) {
				if (as.hasOwnProperty(a)) {
					var area = as[a];
					if ( area.coords !== null ) {
						var scaledCoords = "";
						var scaledCoordsArray = area.coords.split(",");
						for (i = 0; i < scaledCoordsArray.length; i++) {
							scaledCoords += scaledCoordsArray[i] * scaleBy;
							if (i != scaledCoordsArray.length -1) {
								scaledCoords += ",";
							}
						}
						area.coords = scaledCoords;
					}	
				}				
			}
		}
	}
}

function linkto(destination) {
	window.opener.location.href=destination;
	// window.close();
}