function randomize_()
{
	today = new Date();
	num = today.getTime();
	return(num);
}
function openW(strona,width_,height_)
{
	new_window = window.open(strona,randomize_(),'width='+width_+',height='+height_+',toolbars=no,resizeble="no",scrollbars=no');
}