topical media & game development
[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

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#javascript-code-05-parent.js / js



  // Find the horizontal positioing of an element within its parent
  function parentX(elem) {
      // If the offsetParent is the element’s parent, break early
      return elem.parentNode == elem.offsetParent ?
          elem.offsetLeft :
  
          // Otherwise, we need to find the position relative to the entire
          // page for both elements, and find the difference
          pageX( elem ) - pageX( elem.parentNode );
  }
  
  // Find the vertical positioing of an element within its parent
  function parentY(elem) {
      // If the offsetParent is the element’s parent, break early
      return elem.parentNode == elem.offsetParent ?
          elem.offsetTop :
  
          // Otherwise, we need to find the position relative to the entire
          // page for both elements, and find the difference
          pageY( elem ) - pageY( elem.parentNode );
  }
[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

(C) Æliens 20/2/2008

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