https://www.spacesolarstation.com/js/9a1a087380a4e0c1a6820db4d42f749e.js

1function check_product(thisform, alert_added_to_basket){
2
3	// Optional parameters
4	if(alert_added_to_basket == null){
5		var alert_added_to_basket = true;
6	}
7
8	// Carries out standard onSubmit checks for product order forms
9	// To use include    onSubmit="check_product(this)"
10	// in your form tag
11
12	var message = "";
13
14	with (thisform){
15
16	// Make sure we have selected a product 
17
18		try {
19			if (order_prod_id.value <= 0){
20				message = message + "\n\t"+"Please select a product";
21			}
22			
23		} catch (e) { 
24			message = message + "\n\t"+"Please select a product";
25		}
26
27		// Make sure any product options and user text are set 
28
29		if (message != ""){
30			alert("ERROR:\n"+message);
31			return false;
32		} else if(alert_added_to_basket == true) {
33			alert("Please note:\nYour selection has been added to your shopping basket.\n");
34			return true;
35		}
36	}
37}