//   Dette bibliotek indeholder nogle meget generelle funktioner.
//      <script language="JavaScript" type="text/javascript" src="commonLib.js"></script>
var currentTab = '';
var ie	= document.all;
var ns6	= document.getElementById&&!document.all;
var myWidth;
var myHeight;
var myX;
var myY;
function centerScreen(div) {
getScreenWidth();
getScreenOffSet();
var divWidth = div.style.width;
var divHeight = div.style.height;
if (divWidth.indexOf('px') != 0)
  divWidth = divWidth.substring(0, divWidth.length - divWidth.indexOf('px') +1);
	
if (divHeight.indexOf('px') != 0)
  divHeight = divHeight.substring(0, divHeight.length - divHeight.indexOf('px') +1);
var myLeft = ((myWidth - divWidth) / 2) + myX;
var myTop = ((myHeight - divHeight) / 2) + myY;
if (ns6) {
  div.style.left = myLeft;
  div.style.top = myTop;
} else {
  div.style.pixelLeft = myLeft;
  div.style.pixelTop = myTop;
}
}
function getScreenWidth() {
	if( typeof( window.innerWidth ) == 'number' ) { 
	  //Non-IE 
 	  myWidth = window.innerWidth;
 	  myHeight = window.innerHeight; 
	} else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) { 
	  //IE 6+ in 'standards compliant mode' 
	  myWidth = document.documentElement.clientWidth; 
	  myHeight = document.documentElement.clientHeight; 
	} else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) { 
	  //IE 4 compatible 
	  myWidth = document.body.clientWidth; 
	  myHeight = document.body.clientHeight; 
	} 
}
function getScreenOffSet() {
	if( ns6 ) {
	  myX = window.pageXOffset;
	  myY = window.pageYOffset;
	} else{
	  myX = document.body.scrollLeft;
	  myY = document.body.scrollTop;
	}
}
function updateHeightID(id) { 
getScreenWidth()
getScreenOffSet()
var div = getElement(id); 
	
  div.style.height = (myHeight + myY) +'px';
  div.style.width = (myWidth + myX) + 'px';
};
function updateHeight() { 
   updateHeightID('blacklayer');
};
function updateHeightOnly(id) {
  getScreenWidth()
  getScreenOffSet()
  var div = getElement(id);
  div.style.height = ((myHeight + myY) -150) +'px';
}
function updateHeightOnly2(id, offset) {
  getScreenWidth()
  getScreenOffSet()
  var div = getElement(id);
  div.style.height = ((myHeight + myY) - offset) +'px';
}
function updateTab(tabID)   {
   var div;
   if (currentTab != '')   {
      div = document.getElementById(currentTab);
      div.style.display = 'none';
      div = document.getElementById(currentTab + '_front');
      div.style.display = 'block';
      div = document.getElementById(currentTab + '_back');
      div.style.display = 'none';
   }
   currentTab = tabID;
   div = document.getElementById(currentTab);
   div.style.display = 'block';
   div = document.getElementById(currentTab + '_front');
   div.style.display = 'none';
   div = document.getElementById(currentTab + '_back');
   div.style.display = 'block';
};
function myOpen(url, frame, arg)   {
   time = new Date();
   window.open(url + '&time=' + time.getUTCMilliseconds(), frame, arg);
};
function MM_preloadImages()   {
   var d = document;
   if (d.images)   {
      if(!d.MM_p)
         d.MM_p = new Array();
      var i, j = d.MM_p.length, a = MM_preloadImages.arguments;
      for (i = 0 ; i < a.length ; i++)   {
         if (a[i].indexOf("#") != 0)   {
            d.MM_p[j] = new Image;
            d.MM_p[j++].src = a[i];
         }
      }
   }
};
function MM_findObj(n, d)   {
   var p, i, x;
   if (!d)
      d = document;
   if ((p = n.indexOf("?")) > 0 && parent.frames.length)   {
      d = parent.frames[n.substring(p + 1)].document;
      n = n.substring(0, p);
   }
   if (!(x = d[n]) && d.all)
      x = d.all[n];
   for (i = 0 ; !x && i < d.forms.length ; i++)
      x = d.forms[i][n];
   for (i = 0 ; !x && d.layers && i < d.layers.length ; i++)
      x = MM_findObj(n, d.layers[i].document);
   if (!x && document.getElementById)
      x = document.getElementById(n);
   return x;
};
function MM_swapImage()   {
   var i, j = 0, x, a = MM_swapImage.arguments;
   document.MM_sr = new Array;
   for (i = 0 ; i < (a.length - 2) ; i += 3)   {
      if ((x = MM_findObj(a[i])) != null)   {
         document.MM_sr[j++] = x;
         if (!x.oSrc)
            x.oSrc = x.src;
         x.src=a[i + 2];
      }
   }
};
function MM_swapImgRestore()   {
   var i, x, a = document.MM_sr;
   for (i=0 ; a && i < a.length && (x = a[i]) && x.oSrc ; i++)
      x.src = x.oSrc;
};
function getAbsoluteDivs()   
{   
    var arr = new Array();   
    var all_divs = document.body.getElementsByTagName("div");   
    var j = 0;   
  
    for (i = 0; i < all_divs.length; i++)   
        if (all_divs.item(i).style.position=='absolute')   
        {   
            arr[j] = all_divs.item(i);   
            j++;   
        }   
  
    return arr;   
}   
  
function bringToFront(id)   
{
    if (!document.getElementById ||   
        !document.getElementsByTagName)   
        return;   
  
    var obj = document.getElementById(id);   
    var divs = getAbsoluteDivs();   
    var max_index = 0;   
    var cur_index;   
  
    // Compute the maximal z-index of   
    // other absolute-positioned divs   
    for (i = 0; i < divs.length; i++)   
    {   
        var item = divs[i];   
        if (item == obj ||   
            item.style.zIndex == '')   
            continue;   
  
        cur_index = parseInt(item.style.zIndex);   
        if (max_index < cur_index)   
        {   
            max_index = cur_index;   
        }   
    }   
  
    obj.style.zIndex = max_index + 1;   
}   
  
function sendToBack(id)   
{   
    if (!document.getElementById ||   
        !document.getElementsByTagName)   
        return;   
  
    var obj = document.getElementById(id);   
    var divs = getAbsoluteDivs();   
    var min_index = 999999;   
    var cur_index;   
  
    if (divs.length < 2)   
        return;   
  
    // Compute the minimal z-index of   
    // other absolute-positioned divs   
    for (i = 0; i < divs.length; i++)   
    {   
        var item = divs[i];   
        if (item == obj)   
            continue;   
  
        if (item.style.zIndex == '')   
        {   
            min_index = 0;   
            break;   
        }   
  
        cur_index = parseInt(item.style.zIndex);   
        if (min_index > cur_index)   
        {   
            min_index = cur_index;   
        }   
  
    }   
  
    if (min_index > parseInt(obj.style.zIndex))   
    {   
        return;   
    }   
  
    obj.style.zIndex = 1;   
  
    if (min_index > 1)   
        return;   
  
    var add = min_index == 0 ? 2 : 1;   
  
    for (i = 0; i < divs.length; i++)   
    {   
        var item = divs[i];   
        if (item == obj)   
            continue;   
  
        item.style.zIndex += add;   
    }   
}   
function fadeAll(opacity) 
{
fade('top', opacity);
fade('topmenu', opacity);
fade('left', opacity);
fade('right', opacity);
fade('content', opacity);
}
function fade(id, value) 
{
  var caller = document.getElementById(id);   
  caller.style.filter = "alpha(opacity="+value+")";
  caller.style.opacity = value/100;
  caller.style.KhtmlOpacity = value/100;
  caller.style.MozOpacity = value/100;
}
function showDiv(divName) {
	var objDivStyle = eval('document.all.' + divName + '.style');
	objDivStyle.visibility = 'visible';
}
function hideDiv(divName) {
	var objDivStyle = eval('document.all.' + divName + '.style');
	objDivStyle.visibility = 'hidden';
}
// Global timer table
var timers=new Array();
function _fade_in(element, opacity) // private
    {
    // Get object
    obj = document.getElementById(element);
    // Tidy up timer and register
    stop_timeout(element);
    // Make visible
    if (opacity==0)
        obj.style.visibility="";
    // Fade in one more step
    if (opacity <= 100) {
        _set_opacity(obj, opacity);
        opacity+=10;
        window.setTimeout("_fade_in(\'"+element+"\',"+opacity+")", 50);
        }
    // If fully visible, start countdown to fade out
    //if (opacity >= 100) {
    //    window.setTimeout("_fade_out(\'"+element+"\', 100)", 5000);
    //    }
    }
function _fade_out(element, opacity) // private 
    {
    // Get object
    obj = document.getElementById(element);
    // If still visible, fade down one further step
    if (opacity > 0) {
        _set_opacity(obj, opacity);
        opacity-=10;
        window.setTimeout("_fade_out(\'"+element+"\',"+opacity+")", 50);
        }
    // If close to invisible, hide object completely
    if (opacity<10) {
        obj.style.visibility="hidden";
        }
    }
function _set_opacity(obj, opacity) // private
    {
    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;
    }
    
function fade_in(element) // public
    {
    var obj=document.getElementById(element);
    // Start timer
    timers[element]=setTimeout("_fade_in(\'"+element+"\', 0)", 1500);
    }
function fade_out(element, e) // public
    {
    // Tidy up timer and register
    stop_timeout(element);
    // Make sure we´re outside the whole fading div
    var relTarg;
    if (e.relatedTarget) 
        relTarg = e.relatedTarget;
    else if (e.toElement) 
        relTarg = e.toElement;
    // If all the way out, fade out
    if (relTarg.id=="") 
        _fade_out(element, 100);
    }
function stop_timeout(element) // public
    {
    // Stop timer
    clearTimeout(timers[element]);
    // Clear register
    timers[element]=false;
    }