function popup(purl, pwidth, pheight) {
	var ts 	= new Date();
	var ts 	= ts.getTime();
	if (!pwidth) { pwidth = 400; }
	if (!pheight) { pheight = 400; }
	window.open(purl,'keralam-popup-' + ts,'width=' + pwidth + ',height=' + pheight + ',menubar=0,toolbar=0,location=0,status=0,resizable=0,scrollbars=0,copyhistory=0,directories=0').focus();
	return false;
}