[Joshshift]

it used to be in xcart 4 there was a Validation script (JavaScript) box, for which i input something like this:

if (document.getElementById('po573').selectedIndex== 0) {alert('Please select your color.');
return false;}
if (document.getElementById('po574').selectedIndex== 0) {alert('Please select your size.');
return false;}

so i would make the default combo box selection something like:
Please Select...

and if they didnt change the combo box it would throw the customer a message saying make a selection. how is this achieved in xcart5?

Core version: 5.2.15