jQuery Help

[Nathan]

This is my current code, the quantity11 field has to have an input that is greater than 1 for the form to submit.  I have two other fields I need checked as well quantity12 and quantityreg. 

<script type="text/javascript">
		function check() {
			var elements = document.getElementsByName("quantity11");


			for (var i=0; i<elements.length; i++) {

				var nmbr = parseInt(elements[i].value,10);
				if (nmbr < 1){
					alert("Please add at least 1 treat pack to your order to proceed.");
					return false;
				}
			}
			
			return true;
		}
	</script>
                    

I need to add quantity11, quantity12, and quantityreg all together and then check to see if they are greater than 1 to return true.  How can I add them together on the 3rd line?

[Nathan]

<script type="text/javascript">

		function check() {

			var element1 = document.getElementsByName("quantity11");

			var element2 = document.getElementsByName("quantity12");

			var element3 = document.getElementsByName("quantityreg");


			for (var i=0; i<element1.length; i++) {


				var nmbr1 = parseInt(element1[i].value,10);

				var nmbr2 = parseInt(element2[i].value,10);

				var nmbr3 = parseInt(element3[i].value,10);

				var nmbr = nmbr1 + nmbr2 + nmbr3;

				if (nmbr < 1){

					alert("Please add at least 1 treat pack to your order to proceed.");

					return false;

				}

			}


			return true;

		}

	</script>