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Added example code. Taken from one of my own projects where double-posting was a real problem.
Within class functions, use this to get a public variable, and '''omit''' to get a private variable!
Within class functions, use this to get a public variable, and '''omit''' to get a private variable!
== Example Code ==
The following example can be used to disable a form button, for example, to prevent double-posting on a forum.
<pre>// Following code licensed CC-SA
function ref(object)
{
if (document.getElementById) { return document.getElementById(object); }
else if (document.all) { return eval('document.all.' + object); }
else { return false; }
}
function setButton(btnObject)
{
if ( document.post.btnName && document.post.btnValue )
{
document.post.btnName.value = btnObject.name;
document.post.btnValue.value = btnObject.value;
}
else if ( document.all.btnName && document.all.btnValue )
{
document.all.btnName.value = btnObject.name;
document.all.btnValue.value = btnObject.value;
}
var postForm = ref('post');
postForm.submit();
return true;
}</pre>
To make use of this function, add it to the JavaScript used by your form, and then add the following to the button you wish to disable:
<pre>onClick="setButton(this);"</pre>
==Notes==
==Notes==