function submitsearch()
	{
		if(trim($F('searchbox')).length<3){
			alert('Search keyword must be greater than 2 characters.');
			$('searchbox').select();
			$('searchbox').focus();
		}
		else{
			document.search.submit();
		}

	}

	 function trim(str)
	{
	   return str.replace(/^\s*|\s*$/g,"");
	}