Last time I was trying Select All Checkboxes while inviting my gmail contacts on Mixx. Now the Problem was there were more than 500 contacts & it was very tough to click 500 times to select checkboxes one by one. It was very time wasting. So I was looking for a solution which would help me to select all check boxes all at once.
How to Select all Checkboxes at Once in One Click
>> Just Go to : http://www.phpied.com/checktoggle-em-all/
And Save the Bookmarklet to your Browser. Whenever you want to select all checkboxes in a webpage simply click on the Bookmarklet.