addZero = function(number, length) {
	if(!length) length = 2;
	if(number<10) {
		return '0'+number;
	}
	return number;
}

wOpen = function(url, width, height){
	new_window = window.open(url, 'popup', 'status=no, location=no, toolbar=no, scrollbars=yes, directories=no, resizable=no, width='+width+', height='+height) ;
	return false;
}