View source for Using a Check Box to run a JavaScript

You can use a [[Custom Field Type: Select Many – Check Boxes|Check Box]] to run a JavaScript, such that the check box works much like a button on the page to run the script. This is done using a combination of the HTML Tag and a browser script to create the '''action''' event. One of the lines in the script can also un-check the check box.

In the '''HTML Tag''' field on the Check Box [[Custom Field]] you would put an '''OnClick''' event:
<pre>
onclick="runthis()"
</pre>
 
Then in the browser script [[Custom Field]] you would define the '''JavaScript''' function:<br>
<pre>
function runthis()
{
--enter whatever the script should do here--
document.frmevent.cf_123456[1].checked=false;
}
</pre>
where "123456" is the field ID of the Check Box. <br>
* The ''document.frmevent.cf_123456[1].checked=false'' line unchecks the check box if you wish to have the check box behave like a button.

'''Note''': 
*At {{l1}} use ''document.form1'' instead of ''document.frmevent''
*On a tab use ''document.frmedit'' instead of ''document.frmevent''


See Also: [[Using an HTML Tag to Create Action Events]]

[[Category: Custom Fields]][[Category: JavaScript]]