var answ;
answ="";
function get_radio_value()
{
for (var i=0; i < document.forms["srch_frm"].prodcomp.length; i++)
   {
   if (document.forms["srch_frm"].prodcomp[i].checked)
	  {
	  answ = document.forms["srch_frm"].prodcomp[i].value;
	  }
   }
  if(answ=="")
		{
		window.alert("Please specify are you searching for prduct or company.")
		return false;
		}
		else
		{
		document.forms["srch_frm"].submit();
		}
}