function doClick(o){
	 o.className="nav_search";
	 var j;
	 var id;
	 var e;
	 for(var i=1;i<=8;i++){
	   id ="nav"+i;
	   j = document.getElementById(id);
	   e = document.getElementById("sear"+i);
	   if(id != o.id){
	   	 j.className="nav_link";
	   	 e.style.display = "none";
	   }else{
		   e.style.display = "block";
	   }
	 }
}
function SearchCheck(param,warning){
  var str = param.value;
  if (str==""||str.substring(0, 3)=="اًتلبً"){
      alert("اًتلبً"+warning);
      param.focus();
      return false;
  }
return true;
}