window.onload = rolloverInit;

function rolloverInit() {
  for (var i=0; i<document.images.length; i++){
    if (document.images[i].id == "HomeBtn" 
        || document.images[i].id == "AboutBtn" 
        || document.images[i].id == "ShopBtn" 
        || document.images[i].id == "ContactBtn" 
        || document.images[i].id == "title"){
      setupRollover(document.images[i]);
    }
  }
}
//document.images[i].parentNode.tagName =="A" 
function setupRollover(thisImage){
  thisImage.outImage = new Image();
  thisImage.outImage.src = thisImage.src;
  thisImage.onmouseout = function(){
    this.src = this.outImage.src;
  }
  
  thisImage.overImage = new Image();
  thisImage.overImage.src = "/blog/wp-content/themes/comicpress/images/rollovers/" + thisImage.id + "2.png";
  thisImage.onmouseover = function() {
    this.src = this.overImage.src;
    }
}