function validate(theForm)
		{
			var docForm = document.search;
			if (docForm.homesearch.value == ''|| docForm.homesearch.value == ' '|| docForm.homesearch.value == '  ')
	          {
	                  alert('Please enter a valid keyword.');
	                  docForm.homesearch.focus();
	                  return false;
	          }
	        
		
		}
		
var isNS4 = (navigator.appName=="Netscape")?1:0;