ÿþdocument.oncontextmenu=new Function("return false")



function preventSelection(element){

  var preventSelection = false;



  function addHandler(element, event, handler){

    if (element.attachEvent) 

      element.attachEvent('on' + event, handler);

    else 

      if (element.addEventListener) 

        element.addEventListener(event, handler, false);

  }

  function removeSelection(){

    if (window.getSelection) { window.getSelection().removeAllRanges(); }

    else if (document.selection && document.selection.clear)

      document.selection.clear();

  }

  function killCtrlA(event){

    var event = event || window.event;

    var sender = event.target || event.srcElement;



    if (sender.tagName.match(/INPUT|TEXTAREA/i))

      return;



    var key = event.keyCode || event.which;

    if (event.ctrlKey && key == 'A'.charCodeAt(0))

    {

      removeSelection();



      if (event.preventDefault) 

        event.preventDefault();

      else

        event.returnValue = false;

    }

  }



 

  addHandler(element, 'mousemove', function(){

    if(preventSelection)

      removeSelection();

  });

  addHandler(element, 'mousedown', function(event){

    var event = event || window.event;

    var sender = event.target || event.srcElement;

    preventSelection = !sender.tagName.match(/INPUT|TEXTAREA/i);

  });



 

  addHandler(element, 'mouseup', function(){

    if (preventSelection)

      removeSelection();

    preventSelection = false;

  });



 

  addHandler(element, 'keydown', killCtrlA);

  addHandler(element, 'keyup', killCtrlA);

}



preventSelection(document);