onKeyUp lag

[sKunKbad]

I have a form that I validate using ajax. When a form field is valid, an image changes from green to red so the user knows they have filled out the form field correctly. The problem is, if they type fast, I think it's hanging or lagging. For special reasons each form field is validated with the onKeyUp event handler. Does anyone have suggestions as to how to make a user typing fast not cause the validation to lag. Perhaps some sort of timer that only allows the validation to take place once per second? How could I do this?

[sayedsohail]

This should solve the mystery, but make sure browser can't handle multiple ajax requests simentenously.

 

var timer = null;

var delay = 1000;

function startTimer(a,b,c)

{

window.clearTimeout(timer);

timer=window.setTimeout('MyAjaxRequest("'+a+'","'+b+'","'+c+'")',delay);

}