function popupCheckNumber(extraParametar, width, height){
	if(!width) width = "400";
	if(!height)	height = "230";

	window.open("","subForma","width=" + width +  ",height=" + height + ",toolbar=0,location=0"); 
	var form=document.getElementById('checkNumberForm');

	var actionOrig = form.action;	
	if(extraParametar)	form.action = form.action + extraParametar;
	
	form.target='subForma';
	form.submit();
	form.action = actionOrig;
	return false;
}