var newWindow = null;

function popUpWin(url, type, strWidth, strHeight){
	
	LeftPosition = (screen.width) ? (screen.width-strWidth)/2 : 0;
	TopPosition = (screen.height) ? (screen.height-strHeight)/2 : 0;
	tools = "resizable,toolbar=no,location=no,scrollbars=yes, width="+strWidth+",height="+strHeight+",left="+LeftPosition+",top="+TopPosition;
	newWindow = window.open(url, 'newWin', tools);
	newWindow.focus();
}