function go(pag)
{
var miforma = document.lensel;
var lenselected = miforma.selidio.options[miforma.selidio.selectedIndex].value;
location=pag+"?len="+lenselected;
}

function openwin(mywin, wi, he,bar)
 {
 open(mywin,"wname"+he+wi,"resizable=no, width=" + wi + ", height=" + he + ", status=no, scrollbars=" + bar + ", directories=no, menubar=no, toolbar=no, location=no");
 }

function showhide(act, nid) {	
 if (act=="show") {
	 hideall()	 
	 var obj = document.getElementById(nid);
	 obj.style.display = "block";
 }
 else if (act=="hide") {
	 var obj = document.getElementById(nid);
	 obj.style.display = "none";
 }
}

function hideall() {
  var obj = document.getElementById('f1');
 obj.style.display = "none";
  var obj2 = document.getElementById('f2');
 obj2.style.display = "none";
  var obj3 = document.getElementById('f3');
 obj3.style.display = "none";
  var obj4 = document.getElementById('f4');
 obj4.style.display = "none";
  var obj5 = document.getElementById('f5');
 obj5.style.display = "none";
  var obj6 = document.getElementById('f6');
 obj6.style.display = "none";
  var obj7 = document.getElementById('f7');
 obj7.style.display = "none";
  var obj8 = document.getElementById('f8');
 obj8.style.display = "none";
  var obj9 = document.getElementById('f9');
 obj9.style.display = "none";
}