Array problem


imagine this:

var fileArray = new Array();

      function addFile(tableID, fileName, fileSize, dateString, dimX, dimY) {

            if (fileArray.length) var currentIndex = fileArray.length;
            else var currentIndex = 0;

            fileArray[currentIndex] = new Object();
            fileArray[currentIndex]["fileName"] = fileName;
            fileArray[currentIndex]["fileSize"] = fileSize;
            fileArray[currentIndex]["dateString"] = dateString;
            fileArray[currentIndex]["dimX"] = dimX;
            fileArray[currentIndex]["dimY"] = dimY;





Now, my actual problem is, that everytime i add such an Element to the array, i also do get an "undefined" element in the array. I tried to pop() it out but this pops out the one i added. I tried to use push(object) instead of the above code to add a new element, but also there i do get an "undefined" element.

Any ideas on this?

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Where do you see the "undefined" element ?
spiritwithinAuthor Commented:
I use some cheap print_r clone for javascript to inspect the array. That's where i see the undefined element. Besides that i pass the array to an image sorter tool which then shows up an image called "undefined".
I don't see an undefined element using
function print_r(theObj){
  if( theObj.constructor == Array ||
     theObj.constructor == Object
    for(var p in theObj){
      if( theObj[p].constructor == Array||
         theObj[p].constructor == Object
        document.write("<li>["+p+"] => "+typeof(theObj)+"</li>");
          document.write("<li>["+p+"] => "+theObj[p]+"</li>");

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