MainPage = 
{
	OnSubmit: function()
		{
			var sSearch = $('oTxtSearch').value;
			if(sSearch == '')
			{
				alert('Please enter a search criteria.');
				$('oTxtSearch').focus();
				return false;
			}
			document.location = '?search&search_for=' + escape(sSearch);			
			return false;
		}
}