function getHeight()
{
S_Height = screen.height;
Blank_Height = S_Height - 634;

return Blank_Height;
}

function rHeight()
{
S_Height = screen.height;
Blank_Height = S_Height - 234;

return Blank_Height;
}

function checkIt(string) 
{ 
    place = detect.indexOf(string) + 1; 
    thestring = string; 
    return place; 
}   
     
var detect = navigator.userAgent.toLowerCase(); 
var browser,thestring; 


function getBrowser() 
{ 

if (checkIt('msie') || checkIt('internet explorer')) browser = "IE"; 
else if (!checkIt('compatible') || checkIt('firefox')) 
{ 
    browser = "Mozilla"; 
    if(checkIt('firefox')) 
        browser="Firefox"; 
} 
else browser = "Unknown"; 



return browser; 
} 



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';
}