function winPop(url, width, height, centered){
	if (centered == "centered"){
	  var winl = (screen.width-width)/2;
	  var wint = (screen.height-height)/2;
	} else {
	  var winl = 10;
	  var wint = 10;
	}

	var newWindow = window.open(url, 'winPop', 'width=' + width + ',height=' + height + ',menubar=0,toolbar=0,location=0,resizable=0,scrollbars=1,status=0' + ',top=' + wint + ',left=' + winl);
	
	newWindow.focus();
}