I have a print button with id=print_req. I wrote some Javascript code for printing a page, which is triggered by clicking on this button, and I also want to hide this button before printing, and show it after whole printing process.i mean not to print button in my printed document. Here is my code:

$(document).ready(function(){

    $(#print_req).click(function(){

        $(#print_req).css(display,none);

        window.print();  

    });



    $(#print_req).css(display,block);

    return false;   

});

This correctly hide that button, but when the printing process get done, the button won't show again! What is the problem?