How to get list value for data validation in Javascript function

[hongmei]

Hi,

I want to write a javascript function to do data validation for drop down item.

My form's name is myform

My code is below in a function:

if (document.myform.mylist.value="")
{
alert "Please select a value before save";
return;
}

It didnot work.
What should I get the list value and check it?

Thanks

[kevinsequeira]

function validate(){
to_value = document.myform.mylist.options[document.myform.mylist.selectedIndex].value;
if (to_value == ""){
alert("Please select a value before save");
return false;
}

reg
kevin

[paul088]

Try

return false;