function launch(pageURL) 
{
	// if (screen.height <= 640){
	// 	width = 836; height = 500;
	// } else if (screen.height <= 768) {
	// 	width = width = 760; height = 550; 
	// } else if (screen.height <= 960) {
	// 	width = width = 1140; height = 825;
	// } else {
	// 	width = width = 1140; height = 825;
	// }
	
	if (screen.height <= 640){
		width = 836; height = 500;
	} else {
		width = width = 760; height = 650; 
	}

	var url    = pageURL+'.php?width='+width+'&height='+height;
	var left   = (screen.width  - width)/2;
	var top    = (screen.height - height)/2;
	var params = 'width='+width+', height='+height+', top='+top+', left='+left+', directories=no, location=no, menubar=no, resizable=no, scrollbars=no, status=no, toolbar=no';
	newwin=window.open(url,pageURL, params);
	if (window.focus) {newwin.focus()}
	//return false;
}