function presubmit(){
   oq=document.getElementById('oq').value;
   q=document.getElementById('q').value
   
   document.getElementById('q').value=oq;
   
   var mySelect=document.getElementById('myfiletype');
   theIndx=mySelect.selectedIndex;
   mySelect_value="";
   if(mySelect.options[theIndx].value != "none")
   {
    mySelect_value = mySelect.options[theIndx].value;
    if(mySelect_value=='doc'||mySelect_value=='pdf'||mySelect_value=='ppt'||mySelect_value=='xls')
    {
      document.getElementById('as_filetype').value+=mySelect_value;
      document.getElementById('q').value=oq;
    }
    else
    {	    
      document.getElementById('q').value+=' +"index of/" ';
	  document.getElementById('q').value+=' +'+mySelect_value;
      
    }
   }
   else
   {	   
     document.getElementById('q').value+=' +"index of/" ';
   }
   
   var em=document.getElementById('oq');
   em.parentNode.removeChild(em);
   mySelect.parentNode.removeChild(mySelect);
   document.forms[0].submit();
   return true;
}

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