function DPIPopup(url, width, height, name, options) {	
	var win;
	if(width == null || height == null){
		width=600;
		height = 600;
	}				
	if(options == null){
		options = "resizable=yes,status=yes,toolbar=no,menubar=no,location=no,scrollbars=yes";				
	}
	options += ",width=" + width + ",height=" + height;
	if(typeof(win) == 'undefined') {
		win = null;
	}
	if(win && win.open && !win.closed) {
		win.close();
	}
	if(url != '') {
		win = window.open(url, name, options);
	}else {
		win = window.open("about:blank", name, options);
	}
	win.focus();
}