JavaScript Examples Bible - UserWorks Technologies

Chapter 8 ✦ Button Objects (Chapter 24)
Listing 24-4: Adjusting a CGI Submission Action
Checkbox Submission
function setAction(form) {
if (form.checkThis.checked) {
form.action = form.checkThis.value
} else {
form.action = “file://primaryURL”
}
return true
}
Use
alternate
Event handlers
onClick
NN2 NN3 NN4 NN6 IE3/J1 IE3/J2 IE4 IE5 IE5.5
Compatibility ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
Example
The page in Listing 24-5 shows how to trap the click event in one checkbox to
influence the visibility and display of other form controls. After you turn on the
Monitor checkbox, a list of radio buttons for monitor sizes appears. Similarly,
engaging the Communications checkbox makes two radio buttons visible. Your
choice of radio button brings up one of two further choices within the same table
cell (see Figure 8-1).
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document.formObject.checkboxObject.onClick