function open_close(div, img, open_img, close_img) {
  if (document.all) {
    if (document.all[div]) {
      if (document.all[div].style.display == 'none') {
        document.all[div].style.display = '';
        if (document.all[img]) document.all[img].src = open_img;
      } else {
        document.all[div].style.display = 'none';
        if (document.all[img]) document.all[img].src = close_img;
      }
    }
  } 

else if (document.getElementById) {
    var el = document.getElementById(div);
    var im = document.getElementById(img);
    if (el) {
      if (el.style.display == 'none') {
        el.style.display = '';
        if (im) im.src = open_img;
      } else {
        el.style.display = 'none';
        if (im) im.src = close_img;
      }
    }
  } else if (document.layers) {
    alert(document.layers.length);
    if (document.layers[div]) {
      if (document.layers[div].visibility == 'hide') {
        document.layers[div].visibility = "show";
      } else {
        document.layers[div].visibility = "hide";
      }
    }
  }
}

function op(div) 
{	
	 if(document.search.search1.value!="searchby")
	 document.search.go.disabled=false;
	 else
	 document.search.go.disabled=true;
	 
         document.all['divmajor3'].style.display = 'none';
         document.all['divcity'].style.display = 'none';
         document.all['divexp'].style.display = 'none';
         document.all['divpercent3'].style.display = 'none';
         
  if (document.all) 
  {
      if (document.all["div"+div]) 
         document.all["div"+div].style.display = '';
   }
   else if (document.getElementById) {
      var el = document.getElementById("div"+div);
      if (el) 
         el.style.display = '';
      
   }
   
}