自动单击按钮脚本以防篡改？

Question

am trying to create a user script which would click the following button as soon as possible on loadiing the page.

<button class="btn" tabindex="10" disabled="disabled" onclick="ValidateAndSubmit('1')" title="" pay-tab="1">Do now</*button>

please help as i am trying from long time but failing to do so.

i tried this:

<script type="text/javascript"> 
setTimeout(function()
 { document.getElementById("btn").click(); },1000); 
</script>

Answer 1

Try this

(function() {
    window.addEventListener('load', ValidateAndSubmit('1'), false);
})();

(function() {})() defines a scope that is self executed without waiting for any events.

window.addEventListener('load', ValidateAndSubmit('1'), false); subscribes the function ValidateAndSubmit to window load event so that the function is executed on load. This is the same function you are trying to execute by clicking the button.