function dcolor(id) {              
    l_bk = document.getElementById(id).style.background ;
    document.getElementById(id).style.background= '#FFFF80';
}

function dcolor_none(id) {
    document.getElementById(id).style.background= l_bk;
}

//open popup window
function winOpen(url, name, width, height)
{   
    var settings    = 'width=' + width + ',height=' + height + ',left=100,top=150,status=yes,toolbar=no,menubar=no,location=no,scrollbars=yes'; 
    window.open(url, name, settings);
}

//slide dowd
function slideDown(div, pos)
{
var div_left = document.getElementById(div).offsetHeight;
//alert (div_left);
if (div_left < pos){
document.getElementById(div).style.height = div_left + 10 + "px";
setTimeout("slideDown('"+div+"', '"+pos+"')",10)
}
}

function slideUp(div, pos)
{
var div_left = document.getElementById(div).offsetHeight;
if (div_left > pos){
document.getElementById(div).style.height = (div_left - 10) + "px";
setTimeout("slideUp('"+div+"', '"+pos+"')",10)
}
}

function setThumbScrool() {
   el = document.getElementById('t_box');
   if (el) {
      document.getElementById('thum_box').scrollTop = el.offsetTop;
   }
}

function randomBg () {
   var ran_number=Math.floor(Math.random()*15) + 1;
   doc = document.getElementById('header-pic');
   img_bg = '/images/augssa/' + ran_number + '.jpg';
   //img_bg = 'images/augssa/1.jpg';
/*   alert(img_bg);
   if (last_img == img_bg ) {
      randomBg ();
   } else { */
      imgLoad(img_bg);
      var last_img = img_bg;
      //doc.style.backgroundImage = img_bg;
   //}
}


function imgLoad(imgSrc) {
   lImg = document.getElementById('lImage');
   setOpacity(lImg,0); 
   lImg.src = imgSrc;
   document.getElementById('header-pic').className = 'load-header-pic';
   lImg.onload =  function () {
         document.getElementById('header-pic').className = 'header-pic';
         fadeIn('lImage',0);
   };
}

function fadeIn(objId,opacity) {
  if (document.getElementById) {
    obj = document.getElementById(objId);
    if (opacity <= 100) {
      setOpacity(obj, opacity);
      opacity += 10;
      window.setTimeout("fadeIn('"+objId+"',"+opacity+")", 10);
    }
  }
}



function setOpacity(obj, opacity) {
  opacity = (opacity == 100)?99.999:opacity;
  // IE/Win
  obj.style.filter = "alpha(opacity:"+opacity+")";
  // Safari<1.2, Konqueror
  obj.style.KHTMLOpacity = opacity/100;
   // Older Mozilla and Firefox
  obj.style.MozOpacity = opacity/100;
  // Safari 1.2, newer Firefox and Mozilla, CSS3
  obj.style.opacity = opacity/100;

   return true;

}