//---------------------------------------------------------------------
// Function to return the value of the cookie specified by "name".

// Parameter:
// name String object containing the cookie name.

// Return: String object containing the cookie value, or null if
// the cookie does not exist.
//---------------------------------------------------------------------
function GetCookie (name)
{
var arg = name + "=";
var alen = arg.length;
var clen = document.cookie.length;
var i = 0;

while (i < clen)
{
var j = i + alen;
if (document.cookie.substring(i, j) == arg)
return getCookieVal (j);
i = document.cookie.indexOf(" ", i) + 1;
if (i == 0) break;
}
return null;
}
//---------------------------------------------------------------------
// Function to get a cookie.
//---------------------------------------------------------------------

function getCookieVal( offset )
{
var endstr = document.cookie.indexOf (";", offset);

if (endstr == -1)
endstr = document.cookie.length;
return unescape(document.cookie.substring(offset, endstr));
}

//---------------------------------------------------------------------
// Function to set a cookie.
//---------------------------------------------------------------------

function SetCookie( name, value )
{
var argv = SetCookie.arguments;
var argc = SetCookie.arguments.length;
var expires = (argc > 2) ? argv[2] : null;
var path = (argc > 3) ? argv[3] : null;
var domain = (argc > 4) ? argv[4] : null;
var secure = (argc > 5) ? argv[5] : false;

document.cookie =
name + "=" + escape (value) +
((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +
((path == null) ? "" : ("; path=" + path)) +
((domain == null) ? "" : ("; domain=" + domain)) +
((secure == true) ? "; secure" : "");
}

//---------------------------------------------------------------------
// Function to delete a cookie. (Sets expiration date)
// name - String object containing the cookie name
//---------------------------------------------------------------------

function DeleteCookie (name)
{
var exp = new Date();
var cval = GetCookie (name);

exp.setTime (exp.getTime() - 1); // This cookie is history
document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
}



function findCookie(szName) 
    {
      var i = 0;
      var nStartPosition = 0;
      var nEndPosition = 0;  
      var szCookieString = document.cookie;  

      while (i <= szCookieString.length) 
      {
        nStartPosition = i;
        nEndPosition = nStartPosition + szName.length;

        if(szCookieString.substring( nStartPosition,nEndPosition) == szName) 
        {
          nStartPosition = nEndPosition + 1;
          nEndPosition = document.cookie.indexOf(";",nStartPosition);

          if(nEndPosition < nStartPosition)
            nEndPosition = document.cookie.length;

          return document.cookie.substring( nStartPosition,nEndPosition);  
          break;    
        }
        i++;  
      }
      return "";
}




function show(id) {
   if (document.getElementById) { document.getElementById(id).style.display='block'; }
    else if (document.all) { document.all[id].style.display='block'; }
    else if (document.layers) { document.layers[id].display='block'; }
  }

function hide(id) {
   if (document.getElementById) { document.getElementById(id).style.display='none'; }
    else if (document.all) { document.all[id].style.display='none'; }
    else if (document.layers) { document.layers[id].display='none'; }
  }