//make sure at least ont box is ticked
function checkforticks() {
 if (document.venuesearch.friday.checked == false &&
         document.venuesearch.saturday.checked == false &&
	 document.venuesearch.sunday.checked == false &&
	  document.venuesearch.monday.checked == false &&
	   document.venuesearch.tuesday.checked == false &&
	    document.venuesearch.wednesday.checked == false &&
		 document.venuesearch.thursday.checked == false ) {	  
	 alert("Please select at least one day.\n");
	 return false;
}}