function getObj(id) {
    return (document.all)? document.all[id] : document.getElementById(id);
}

function IaddEventListener(element, event, listenerFn) {
    if(element.addEventListener) { 
        element.addEventListener(event, listenerFn, false);
    } else if (element.attachEvent) {
        element.attachEvent("on" + event, listenerFn);
    } else { 
        element["on"+event] = listenerFn;
    }
}

function getNewCaptcha(id, url) {
	var imgObj =document.images[id];	
	imgObj.src = url+'&'+Math.floor(Math.random()*1000);
}

/**
* toggle object
**/
function toggle(name) {
	var x = getObj(name);
	x.style.display = (x.style.display == 'none' || x.style.display == '')? 'block' : 'none';
}

function validateOrderForm() { 
	var x = document.orderForm;
	var quantity = x.quantity;
	var pass = 0;

	if (quantity.length) {
		for (var i=0; i<quantity.length; ++i) {
			var qvalue = parseInt(quantity[i].value);
			if (qvalue > 0) {
				pass = 1;
			}
		}
	} else if (parseInt(quantity.value) > 0)
		 pass = 1;
		 
	if (pass == 0)
		alert('Please enter quantity');
	else if (parseInt(x.productID.value) > 0)
		x.submit();
}