function doSearch(frm){
 if(frm.search_term.value=="") return false;
 //alert();
    //alert(frm.search_term.value);
    document.location = "/" + (frm.search_term.value.replace(/-/g, "_")).replace(/(\s)/g , "-") + "-find/";
    //alert((frm.search_term.value.replace(/-/g, "_")).replace(/(\s)/g , "-"));
}

document.onkeypress =function checkKeyPress(e)   {   if(!e)e = window.event;   var key = (typeof e.which == 'number')?e.which:e.keyCode;   if(key == 13) handleKP();   }

if (document.captureEvents)
   {
   document.captureEvents(Event.KEYPRESS);
   }
if (document.addEventListener)
   {
   document.addEventListener("keypress", checkKeyPress, true);
   }

function handleKP()
   {
   // put whatever code you want to execute here
   //alert("enter key pressed");
   doSearch(document.forms[0]);
   return;
   }