gistfile1.js

// ==UserScript==
// @name          Outlook Web Access Extensions
// @namespace     http://www2.hawaii.edu/~dburger
// @description   Extensions to using the bastard child Outlook Web Access
// @include       https://mail.camber.com/exchange/*
// ==/UserScript==

(

function() {
   var tables = document.getElementsByTagName('table');
   for (var i = 0; i < tables.length; i++) {
       var table = tables[i];
       if (table.className === 'trToolbar') {
           var row = table.tBodies[0].rows[0];
           var newCell = row.insertCell(row.cells.length - 1);
           newCell.setAttribute('valign', 'middle');
           newCell.setAttribute('nowrap', 'nowrap');
           var font = document.createElement('font');
           font.setAttribute('size', '2');
           font.appendChild(document.createTextNode('Select All'));
           var nobr = document.createElement('nobr');
           nobr.appendChild(font);
           var a = document.createElement('a');
           a.href = 'javascript:void(0);';
           a.addEventListener('click', function() {
               var inputs = document.getElementsByTagName('input');
               for (var i = 0; i < inputs.length; i++) {
                   var input = inputs[i];
                   var evt = document.createEvent('MouseEvents');
                   if (input.type == 'checkbox' &amp;&amp; !input.checked) {
                       // this won't fire the events to color the row
                       // input.checked = true;
                       // so dispatch as an event instead
                       evt.initEvent('click', true, false);
                       input.dispatchEvent(evt);
                   }
               }
           }, true);
           a.appendChild(nobr);
           newCell.appendChild(a);
       }
   }
}

)();