function validate(){
	if(document.search.qu.value=="")
	{
		alert ("Please enter one or more search terms");
			document.search.qu.focus();
			return false;
		}
	{
		return true;
	}
}

function validateform(){
	if(document.f.as_q.value=="" && document.f.as_epq.value=="" && document.f.as_oq.value=="" && document.f.as_eq.value=="" )
	{
		alert ("Please enter one or more advance search terms");
			document.f.as_q.focus();
			return false;
	}
	{
		return true;
	}
}

function validateksearch(){
	if(document.ksearch.qu.value=="")
	{
		alert ("Please enter one or more keywords");
			document.ksearch.qu.focus();
			return false;
		}
	{
		return true;
	}
}