function PreviewSample(url, wh, fullscreen){

	var h = 150;
	var w = 300;
	var winl = 150 ;
	var wint = 150 ;

	if (wh) {
		dims = wh.split(" ");
		if (dims[0] > 0)
			w = dims[0];

		if (dims[1] > 0)
			h = dims[1];

		if (fullscreen && fullscreen == 'fs') {
			w = parseInt(w) + 30;
			h = parseInt(h) + 30;
		}
	}

	winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars=yes,toolbar=no,menubar=no,statusbar=no,status=no,resizable=yes'

	popup = window.open(url, "", winprops);

	if (typeof(popup) == "undefined") {
		if (navigator.userAgent.indexOf("Safari") != "-1") {
			alert("We cant open a popup. Please disable your popup filter or press CTRL+SHIFT+K.");
		} else {
			alert("We cant open a popup. Please disable your popup filter.");
		}
	}
}