// Search JavaScript
var emptyText = "Enter Search Criteria";
	
function isEmpty(s){
	var i;
	var space = " \r\n";
	if ((s == null) || (s.length < 1)) return true;
	for(i = 0; i < s.length; i++){   
		var ch = s.charAt(i);
		if(space.indexOf(ch) == -1) return false;
	}
	return true;
}

function isRadio(s){
  for(var i=0;i<s.length;i++){
	if(s[i].checked)
		var radval = 1;
  }
  if(radval == 1) return true;
  else return false;
}

function textFocus(obj){
	if(obj.value == emptyText)
		obj.value = "";
}

function textBlur(obj){
	if(isEmpty(obj.value))
		obj.value = emptyText;
}

function validateSearch(){
	if(!isRadio(document.search.col)){
		alert("You must select a location to search");
		return false;
	} else if(isEmpty(document.search.qt.value) || document.search.qt.value == emptyText){
		alert("You must enter search critera");
		document.search.qt.focus();
		return false;
	}
	return true;			
}	

function selectSearch(){
	document.search.qt.focus();;
}