Personal Computer World 2008 May/PersonalComputerWorld-May2008-CoverdiscCD.iso/Software/Full/Nero 7/Installation/Cab/83AF5E4E.cab/iFrameContentFocusE5E4E19C.js

JavaScript | 2006-06-20 | 1.6 KB | 26 lines

/* This script provides invisible focusable elements at the top. bottom, left and right of a frame-content page. When you focus on
  any of these, the focus will automatically go back up to the parent page that contains the frame. This allows you to jump the
  focus back and forth between the parent and child pages; when you click past the last button in any direction you hit one of
  these placeholders and the focus moves back to the parent page. (The reason they are positioned so far off the visible page is
  to make sure that each is focusable from any element on the page when you hit the arrow for that direction.) */

var pageWidth = body.scrollWidth
var pageHeight = body.scrollHeight

//document.write ('<span MCFocusable="true" style="position: absolute; top: -1000; left: 0; width: 100%; height: 20;" onfocus="sendFocusBackToParent()"></span>') // top element
//document.write ('<span MCFocusable="true" style="position: absolute; top: ' + (pageHeight + 1000) + '; left: 0; width: 100%; height: 20;" onfocus="body.scrollTop=0;sendFocusBackToParent()"></span>') // bottom element

document.write ('<span MCFocusable="true" style="position: absolute; top: 0; left: -1000; width: 20; height: 100%;" onfocus="sendFocusBackToParent()"></span>') // left element

//document.write ('<span MCFocusable="true" style="position: absolute; top: 0; left: ' + (pageWidth+1000) +'; width: 20; height: 100%;" onfocus="body.scrollLeft=0;sendFocusBackToParent()"></span>') // right element



function sendFocusBackToParent()
{
    //this function sends the focus back to the parent page
    oCurFocus = null
    window.top.moveFocusBackToIFrame();
}