SlideshowObjectInitializer

imglibutils.js

//Overridden SlideshowObject constructor with method for excluding pictures  
function SlideshowObjectInitializer() {
   SlideshowObject = (function(SlideshowObjectOrig) {
   
      return function() {
       
       //Exclude pictures
       if(typeof excludePic != 'undefined') {
          for(i=0,k=0;i<arguments[1].length;i++) {
             var imageInfo = {src: arguments[1][i], fullImageSrc: arguments[2][i], title: arguments[3][i],description: arguments[4][i], height: arguments[5][i], width: arguments[6][i]};
             if(excludePic(imageInfo)) {
                for(j=1;j<7;j++) {
                    arguments[j].splice(i, 1);
                }  
                i--;
             } 
          }
       }
       //Call original SlideshowObject constructor 
       return SlideshowObjectOrig.apply(this, arguments);
     };
  })(SlideshowObject);
}   

//Exclide pictures with no titles
function excludePic(imageInfo) {
    return (imageInfo.title.length == 0);
}

ExecuteOrDelayUntilScriptLoaded(SlideshowObjectInitializer, 'imglib.js');