function initImgRotation() {
  // create rotating image objects here 
  // arguments: image name, rotation speed (milliseconds)
  var rotator1 = new rotateImgObj('img1',2500);
  // add the images to rotate into that image object
  rotator1.addImages("gse.jpg","share.jpg","interaction_ug.jpg","idb2_ug.jpg", "asap.jpg", "informix.gif","websphere100.jpg", "db2100x74.gif", "rational100x74.gif")
  // add the corresponding actions to take onclick of those images 
  // destination url or function pointer
  rotator1.addActions("othercom.php", "othercom.php", "othercom.php", "othercom.php", "othercom.php", "othercom.php", "othercom.php", "othercom.php", "othercom.php");
  //crotator1.addActions("othercom.php", "othercom.php", "othercom.php", doMsg );
  rotator1.rotate();
  
  //var rotator2 = new rotateImgObj('img2',2500);
  // add the images to rotate into that image object
  //rotator2.addImages("tivoli_logo.gif","diagonal88x21.gif","rocket88x21.gif","hyperformix88x21.gif", "bocada.gif", "gulfbreeze_blue.jpg", "ais100x74.gif", "eirteic_88x21.gif","amd88x21.gif" );
  // add the corresponding actions to take onclick of those images
  // destination url or function pointer
  //rotator2.addActions("sponsors.php", "sponsors.php", "sponsors.php", "sponsors.php", "sponsors.php", "sponsors.php", "sponsors.php", "sponsors.php", "sponsors.php" );
  //crotator1.addActions("othercom.php", "othercom.php", "othercom.php", doMsg );
  //rotator2.rotate();


  rotateImgObj.start();
}

// for example function call onclick 
// This function demonstrates how to obtain some of the information available about the rotateImgObj clicked on 
function doMsg() { 
  var obj = rotateImgObjs[0];
  var msg = "You clicked on " + obj.imgObj.src;
  msg += ",\nnumber " + Number(obj.ctr+1) + " in the set. ";
  msg += "It's height is " + obj.imgObj.height + " pixels.";
  alert(msg);
}

// If all the images you wish to display are in the same location, you can specify the path here 
rotateImgObj.imagesPath = "images/";
// if you want url's to open in a separate window, un-comment this line
//rotateImgObj.tgt = "_blank"; 

// no need to edit code below 
/////////////////////////////////////////////////////////////////////
rotateImgObjs = []; // holds all rotating image objects defined
// constructor 
function rotateImgObj(nm,s) {
  this.speed=s; this.ctr=0; this.timer=0;  
  this.imgObj = document.images[nm]; // get reference to the image object
  this.index = rotateImgObjs.length; rotateImgObjs[this.index] = this;
  this.animString = "rotateImgObjs[" + this.index + "]";
}

rotateImgObj.prototype = {
  addImages: function() { // preloads images
    this.imgObj.imgs = [];
    for (var i=0; i<arguments.length; i++) {
      this.imgObj.imgs[i] = new Image();
      this.imgObj.imgs[i].src = rotateImgObj.imagesPath + arguments[i];
    }
  },
  
  addActions: function() {
    this.actions = [];
    for (var i=0; i<arguments.length; i++) { this.actions[i] = arguments[i]; }
  },
  
  rotate: function() {
    if (this.ctr < this.imgObj.imgs.length-1) this.ctr++;
    else this.ctr = 0;
    this.imgObj.src = this.imgObj.imgs[this.ctr].src;
  }
}

// sets up rotation for all defined rotateImgObjs
rotateImgObj.start = function() {
  for (var i=0; i<rotateImgObjs.length; i++) 
    rotateImgObjs[i].timer = setInterval(rotateImgObjs[i].animString + ".rotate()", rotateImgObjs[i].speed);                     
}

// called onclick of images
rotateImgObj.doClick = function(n) {
	if ( document.images && rotateImgObjs[n] ) {
    var obj = rotateImgObjs[n]; // shorten reference 
    if ( obj.actions && obj.actions[obj.ctr] ) {
  		if ( typeof obj.actions[obj.ctr] == "string" ) {
        if ( rotateImgObj.tgt == "_blank" ) {
          // open in separate window (add features here if you want, i.e., chrome, size, position, ...)
          var win = window.open(obj.actions[obj.ctr], "subwin");
          if ( win && !win.closed ) win.focus();
        } else window.location = obj.actions[obj.ctr];
      } else obj.actions[obj.ctr]();
    } 
    return false;
	} else return true;
}

// for stopping/starting onmouseover/out
rotateImgObj.pause = function(n) {	
  if (rotateImgObjs[n]) clearInterval(rotateImgObjs[n].timer); 
}

rotateImgObj.resume = function(n) {
  if ( rotateImgObjs[n] ) {
    var obj = rotateImgObjs[n]; // shorten reference 
    obj.rotate(); // rotate now and resume repeated calls
    obj.timer = setInterval( obj.animString + ".rotate()", obj.speed );
  }
}