function addEvent(elm,evType,fn,useCapture) {
    if(elm.addEventListener) {
      elm.addEventListener(evType,fn,useCapture);
      return true;  
      } else if (elm.attachEvent) {
           var r = elm.attachEvent
           ('on' + evType, fn);
           return r; 
                  } else {
                        elm['on' + evType] = fn;  
                  }
}

addEvent(window,'load',loadImages,false);

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
  var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length;
      i++)
          if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image;
          d.MM_p[j++].src=a[i];}}
} 

function loadImages() {
  if(!document.images && !document.getElementById)
      return false;

    var imageDiv = document.getElementById('imageDiv');
    var nav1 = document.createElement('img');
    var nav2 = document.createElement('img');
    var nav3 = document.createElement('img');
    var nav4 = document.createElement('img');

    nav1.src = 'images/home2.gif';
    nav2.src = 'images/demos2.gif';
    nav3.src = 'images/bios2.gif';
    nav4.src = 'images/contact2.gif';

    imageDiv.appendChild(nav1);
    imageDiv.appendChild(nav2);
    imageDiv.appendChild(nav3);
    imageDiv.appendChild(nav4);
    demoImg();
}


function demoImg()  {
  if(document.getElementById('demoDiv')) {
    var imageDiv = document.getElementById('imageDiv');
    var demo1 = document.createElement('img');
    var demo2 = document.createElement('img');
    var demo3 = document.createElement('img');
    var demo4 = document.createElement('img');

    demo1.src = 'images/commercial2.gif';
    demo2.src = 'images/medical2.gif';
    demo3.src = 'images/narration2.gif';
    demo4.src = 'images/messages2.gif';

    imageDiv.appendChild(demo1);
    imageDiv.appendChild(demo2);
    imageDiv.appendChild(demo3);
    imageDiv.appendChild(demo4);
  }
}