Block & unblock keys

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beyron

block & unblock keys

Posted: August 2nd, 2009, 5:27 am

Posts: 57

Hi, im facing a problem i myself created. I disabled some keys so the user could not use them in relation to the browser functions, like tab, backspace, etc. but now i want to let the user use them but only when he is fillin a form, what then do you think i should do to unblock the keys?

Remember that i want to have the keys blocked when the user is not writing in the form.

<script type="text/javascript">
document.onkeypress = block;
document.onkeydown = block;
function block(e){
if ((e.keyCode == 9) || (e.keyCode == 8)){
return false;}}
</script>

Thanks for all help

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plug_n_play

Re: block & unblock keys

Posted: August 2nd, 2009, 5:52 am

Posts: 112

add a variable to control where the user is var control=false;

<script type="text/javascript">
var control=false;
document.onkeypress = block;
document.onkeydown = block;
function block(e){
if (control==false){
if ((e.keyCode == 9) || (e.keyCode == 8)){
return false;}}}
</script>

and use it in every input field

<input onfocus="control=true;" onblur="control=false;" />

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FORUMS » Client Side » JavaScript

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