form validation dynamic number of select lists

[mrmookster]

i've reached the limit of my javascript knowledge can you help?

i have a form that builds a number of select boxes (it may be different per page) i need a javascript form validator to go through each select in the form and verify that a selection has been made ie selectedIndex !=0

the pseudocode would be

function validateForm
errorStr = ""
for each select in form
if select.selectedIndex != 0 then
errorStr = errorStr + select.selectedIndex.text
next

if errorStr <> "" then alert(errorStr)
return false
else return true
end function

 

[yngjzy12]

Hey, I think the first thing you need to do is get all the select elements. something like

// get all select elements on the page
var selectArray = document.getElementsByTagName('select');

Then once you have an array of all the select elements its a matter of looping through each one and checking its current state.

for (var i = 0; i < selectArray.length; i++) {
if (selectArray[i]...) your code here
}