function sendPoll(){
			var theForm = document.service_form;
			var checkboxFound = false;
			
			for(i=0; i<theForm.elements.length; i++){
				if(theForm.elements[i].type=='checkbox'){
					if(theForm.elements[i].checked==true){
						checkboxFound = true;
						break;
					}
				}
			}			
			
			if(checkboxFound){
				theForm.field1.value = 'poll';
				theForm.action = 'index.php';
				theForm.submit();
			}else{
				alert('Please select the brands of rolling tobacco you smoke or prefer.');
			}
		}