function refreshjobcat(){
		
		var i;
		for (i = $('m2jobcat2').length - 1; i>=0; i--) {
			$('m2jobcat2').options[i].disabled=false;
			if ($('m2jobcat2').options[i].value==$('m2jobcat1').value) {
				if($('m2jobcat2').options[i].value!="none"){
					$('m2jobcat2').options[i].disabled=true;
				}
			}
		}
		var i;
		for (i = $('m2jobcat3').length - 1; i>=0; i--) {
			$('m2jobcat3').options[i].disabled=false;
			if (($('m2jobcat3').options[i].value==$('m2jobcat1').value)||($('m2jobcat3').options[i].value==$('m2jobcat2').value)) {
				if($('m2jobcat3').options[i].value!="none"){
					$('m2jobcat3').options[i].disabled=true;
				}
			}
		}
		
		if($('m2jobcat1').value!='all'){
			$('m2jobcat2').disabled=false;
		}else{
			$('m2jobcat2').value='none';
			$('m2jobcat2').disabled=true;
		}
		if($('m2jobcat2').value!='none'){
			$('m2jobcat3').disabled=false;
		}else{
			$('m2jobcat3').value='none';
			$('m2jobcat3').disabled=true;
		}
	}
	
	function checkForm(){
		if($('agreebox').checked==true){
			return true;
		}else{
			alert('Please tick to confirm you agree to the KeepMePosted terms and conditions.');
			return false;
		}
	}