function dynamicSelect2(id1, id2)
{
 if (document.getElementById && document.getElementsByTagName)
 {
  var sel1 = document.getElementById(id1);
  var sel2 = document.getElementById(id2);
  var clone = sel2.cloneNode(true);
  var clonedOptions = clone.getElementsByTagName("option");
  refreshDynamicSelectOptions(sel1, sel2, clonedOptions);
  sel1.onchange = function()
  {
   refreshDynamicSelectOptions(sel1, sel2, clonedOptions);
  }
  sel1.disabled=false;
 }
}


function dynamicSelect3(id1, id2, id3)
{
 if (document.getElementById && document.getElementsByTagName)
 {
  var sel1 = document.getElementById(id1);
  var sel2 = document.getElementById(id2);
  var sel3 = document.getElementById(id3);
  var clone1 = sel2.cloneNode(true);
  var clone2 = sel3.cloneNode(true);
  var clonedOptions1 = clone1.getElementsByTagName("option");
  var clonedOptions2 = clone2.getElementsByTagName("option");
  refreshDynamicSelectOptions(sel1, sel2, clonedOptions1);
  refreshDynamicSelectOptions(sel2, sel3, clonedOptions2);
  sel1.onchange = function()
  {
   refreshDynamicSelectOptions(sel1, sel2, clonedOptions1);
   refreshDynamicSelectOptions(sel2, sel3, clonedOptions2);
  }
  sel2.onchange = function()
  {
   refreshDynamicSelectOptions(sel2, sel3, clonedOptions2);
  }
  sel1.disabled=false;
 }
}


function refreshDynamicSelectOptions(sel1, sel2, clonedOptions)
{
 while(sel2.options.length)
 {
  sel2.remove(0);
 }
 var pattern1 = /( |^)(select)( |$)/;
 var pattern2 = new RegExp("( |^)(" + sel1.options[sel1.selectedIndex].value + ")( |$)");
 for (var i = 0; i < clonedOptions.length; i++)
 {
  if (clonedOptions[i].className.match(pattern1) || clonedOptions[i].className.match(pattern2))
  {
   sel2.appendChild(clonedOptions[i].cloneNode(true));
  }
 }
 if(sel2.options.length==2)
 {
  sel2[1].selected=true;
  sel2.disabled=true;
 } else sel2.disabled=false;
}
function openPopup(url,name,width,height) {
	var popupWin = top[name];
	if (popupWin != null && typeof(popupWin) == 'object' && !popupWin.closed) {
		if (popupWin.document.location.href != url) {
			popupWin.document.location.href = url;
		}
	} else {
		popupWin = window.open(url, name, 'width=' + width + ',height=' + height + ',status=no,menubar=no,resizable=yes,scrollbars=yes, left=' + String((screen.width-width)/2) + ',top=' + String((screen.height-height)/2));
	}
	popupWin.focus();
}

function closePopup(url) {
	if (opener) {
		if (opener.closed) window.open(url, "");
		self.close();
		return false;
	}
	return true;
}