function alphanumeric(alphane)
	{
		var numaric = alphane;
//		alert (numaric.length);
		if (numaric.length==0)
		{
			alert("you must enter a keyword(s)");
			document.getElementById("keywords").focus();
			return false;
		}
		else
		{
			for(var j=0; j<numaric.length; j++)
			{
			  var alphaa = numaric.charAt(j);
			  var hh = alphaa.charCodeAt(0);
			  if((hh > 47 && hh<58) || (hh > 64 && hh<91) || (hh > 96 && hh<123) || (hh == 45) ||(hh == 32))
			  {
			  //a-z, A-Z, 0-9, hyphen, space
			  //let it pass ok character
			  }
				else
				{
//				alert(hh);
				alert("you can only use alpha numeric characters, space, and dash (-)\n\ndon't add quotes use the exact match checkbox instead");
				document.getElementById("keywords").focus();
				 return false;
			  }
			  
			}
			
			return true;

		}
	}