function SetChecked(groupName, value) {

	docForm  =  document.SearchForm;
	len  =  docForm.elements.length;
	var i = 0;
	var s = "";

	for( i = 0 ; i<len ; i++) {
		s = docForm.elements[i].name;

		if (s.indexOf(groupName) >= 0)
		{
			docForm.elements[i].checked = value;
		}
	}

}



function ensureCheck(groupName) 
{
	var k = 0;
	var i = 0;
	var s = "";

	docForm = document.SearchForm;
	len = docForm.elements.length;

	for( i = 0 ; i<len ; i++) 
	{
		s = docForm.elements[i].name;
		if (s.indexOf(groupName) >= 0)
		{
			if (docForm.elements[i].checked) 
			{
				k = k+1;
			}
		}
	}


	if ( k == 0 )
   	{
   		alert("Please select an area from the list to continue!");
   		return (false);
   	}

	return true;
}