function preload(image_object,image_source,width,height) {
	if (document.images) {
		if (typeof width == 'undefined' && typeof height == 'undefined') {
			eval(image_object+' = new Image()');
			eval(image_object+'.src = "'+image_source+'"');
		} else {
			eval(image_object+' = new Image('+width+','+height+')');
			eval(image_object+'.src = "'+image_source+'"');
		}
	}
}


function swap_image(target, source) {
	if (document.images[target] && eval("typeof " + source + " == 'object'")) {
		document.images[target].src = eval(source + ".src");
	}
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

	function Launch(page, width, height) { 
		OpenWin = this.open(page, "", "toolbar=no, menubar=no ,location=no, scrollbars=no, resizable=no, width=" + width + ", height=" + height + ", top=" + (screen.height/2 - height/2) + ", left=" + (screen.width/2 - width/2) + "\""); 
	}