How to Assign a value to a Option of a Combo on the fly

[samuel marin]

I have a function that creates a Combo box on the fly:

function makeForm() {

mypara=document.getElementById("paraID");
myform=document.createElement("form");
myselect = document.createElement("select");

theOption=document.createElement("OPTION");
theText=document.createTextNode("Revenue");
theOption.appendChild(theText);
myselect.appendChild(theOption);

myform.appendChild(myselect);
mypara.appendChild(myform); 
[color=red]myselect.onchange=TitleOnChange;[/color]
mybreak=document.createElement("p"); 
myform.appendChild(mybreak); 
}

I want to be able to call the following function and execute a code base on the selection of the Combo:

<script type='text/javascript'> 
function TitleOnChange() 
{ 
[color=red]if (document.form.select.value == "")[/color] 
{ 
alert("Other");
} 

} 

</script>

I guess is not working because I don't know how to assign a value to the Combo on the fly.

Any helpt would be highly appreciate.

Thanks

[Bear Bibeault]

Welcome to the Ranch,

samuel marin wrote:I have a function that creates a Combo box on the fly:

No. There's no such things as a "combo". I assume you mean a select dropdown? Please read: HtmlHasNoComboBox

Also, your code will be much easier to read with proper indentation. I'd suggest editing your post. Properly indented and formatted code greatly increases the probability that your question will get quicker, better answers.

[Bear Bibeault]

Give the element an id value and then use document.getElementById() to reference it.

[samuel marin]

I was trying to delete this post so I could create an acurate one with the correction that you mentioned.

I'm still don't know how to solve my issue.

Thanks