Javascript form calculation error

[twopooches]

I would very much appreciate feedback on this problem.

the error can be found at
http://twopooches.com/cost.htm
'checked' is null or not an object...

I only get this on IE. On NE and FF it works fine... even works in IE when testing locally.

When I installed a couple of days ago it worked fine.
Problem occurs when you click calculate.

I even tried changing a few things and it still did not work on IE, online

This one is driving me nuts...

[shoshanaz]

I think you are trying to use "checked" on an option list, and the property should be "selected" as below:

function KW_getVal(o){ //v1.2
var retVal="0";if (o.type=="select-one")
{retVal=(o.selectedIndex==-1)?0:o.options[o.selectedIndex].value;}
else if (o.length>1){for (var i=0;i<o.length;i++) if (o[i].selected) retVal=o[i].value;
} else if (o.type=="checkbox") {retVal=(o.checked)?o.value:0;} else {
retVal=Number(o.value)}return parseFloat(retVal);
}