function dozoom(ldz_foto) {
	var ldz_first_w=600;
	var ldz_first_h=400;
	
	var ldz_pos_x=(screen.availWidth-ldz_first_w)/2;
	var ldz_pos_y=(screen.availHeight-ldz_first_h)/2;
	
	ldz_window=window.open('http://www.witcom.com/jsscripts/zoom.php?f='+ldz_foto,'_blank','top='+ldz_pos_y+',left='+ldz_pos_x+',width='+ldz_first_w+',height='+ldz_first_h+',alwaysRaised=1,dependent=1,location=0,directories=0,resizable=1,status=0,titlebar=0,toolbar=0,menubar=1');
}