prevent user using ctrl v to paste

[jasonc]

I wish for my users to retype their email address instead of the copy and paste method to ensure they have typed it correctly both times.

 

How could this be done, would it be Javascript ?

[sunfighter]

I found this on the web. It disables a little more than ctrl-v:

 

function disableCtrlModifer(evt)
{
var disabled = {a:0, c:0, x:0, v:0};
var ctrlMod = (window.event)? window.event.ctrlKey : evt.ctrlKey;
var key = (window.event)? window.event.keyCode : evt.which;
key = String.fromCharCode(key).toLowerCase();
return (ctrlMod && (key in disabled))? false : true;
}

 

Call it this way:

 

<input type="text" name="mytext"
        onkeypress="return disableCtrlModifer(event);"
        onkeydown="return disableCtrlModifer(event);" />