function exit()
{
    document.getElementById('tooltip').style.display = 'none';
}


function changecolor(id, color) {
	element = document.getElementById(id);
	event.cancelBubble = true;
	oldcolor = element.currentStyle.background;
	element.style.background = color;
}

function toggleObj(myObject){
    if (document.getElementById){
        // this is the way the standards work
        var style2 = document.getElementById(myObject).style;
        style2.display = style2.display? "":"block";
    }else if (document.all){
        // this is the way old msie versions work
        var style2 = document.all[myObject].style;
        style2.display = style2.display? "":"block";
    }else if (document.layers){
        // this is the way nn4 works
        var style2 = document.layers[myObject].style;
        style2.display = style2.display? "":"block";
    }
}

function toggleLayer( whichLayer )
{
  var elem, vis;
  if( document.getElementById ) // this is the way the standards work
    elem = document.getElementById( whichLayer );
  else if( document.all ) // this is the way old msie versions work
      elem = document.all[whichLayer];
  else if( document.layers ) // this is the way nn4 works
    elem = document.layers[whichLayer];
  vis = elem.style;
  // if the style.display value is blank we try to figure it out here
  if(vis.display==''&&elem.offsetWidth!=undefined&&elem.offsetHeight!=undefined)
    vis.display = (elem.offsetWidth!=0&&elem.offsetHeight!=0)?'block':'none';
  vis.display = (vis.display==''||vis.display=='block')?'none':'block';
}