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) _

talk show tell print

professional-javascript-09-AddRemoveEventHandlersExample.htm / htm



  <html>
      <head>
          <title>Add/Remove Event Handlers Example</title>
          <script type="text/javascript">
                  var EventUtil = new Object;
                  EventUtil.addEventHandler = function (oTarget, sEventType, fnHandler) {
                      if (oTarget.addEventListener) {
                          oTarget.addEventListener(sEventType, fnHandler, false);
                      } else if (oTarget.attachEvent) {
                          oTarget.attachEvent("on" + sEventType, fnHandler);
                      } else {
                          oTarget["on" + sEventType] = fnHandler;
                      }
                  };
                          
                  EventUtil.removeEventHandler = function (oTarget, sEventType, fnHandler) {
                      if (oTarget.removeEventListener) {
                          oTarget.removeEventListener(sEventType, fnHandler, false);
                      } else if (oTarget.detachEvent) {
                          oTarget.detachEvent("on" + sEventType, fnHandler);
                      } else { 
                          oTarget["on" + sEventType] = null;
                      }
                  };
          
          
                  function handleClick() {
                      alert("Click!");
                      var oDiv = document.getElementById("div1");
                      EventUtil.removeEventHandler(oDiv, "click", handleClick);
                  }
                  
                  window.onload = function() {
                      var oDiv = document.getElementById("div1");                
                      EventUtil.addEventHandler(oDiv, "click", handleClick);
                  }
          </script>
      </head>
      <body>
  
           <div id="div1" style="background-color: red; width: 100px; height: 100px"></div>
      </body>
  </html>
[] 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

You may not copy or print any of this material without explicit permission of the author or the publisher. In case of other copyright issues, contact the author.