var preloadedImages = new Array();
preloadedImages["img"] = new Array();

function toggleDiv(divId) {
      if (document.all[divId].style.display == 'block')
         hideDiv(divId);
      else
         showDiv(divId);
}
function hideDiv(divId) {
    if (document.all) {
        document.all[divId].style.display = 'none';
}
}
function showDiv(divId) {
    if (document.all){
        document.all[divId].style.display = 'block';
}
}

function imgplusminus(imgname){
if (preloadedImages["img"][imgname]==1){
document.images[imgname].src = '/upload/images/' + 'plus.gif';
preloadedImages["img"][imgname]=0;
}else{
document.images[imgname].src = '/upload/images/' + 'minus.gif';
preloadedImages["img"][imgname]=1;
}


}