function menu(index,linkurl,pagename)
{
	imageID='image'+index;
	document.getElementById(imageID).background="../images/menu5.gif";
	writeCookie(pagename, index, 1)
	window.location.href=linkurl;
}	
// Example:
// writeCookie("myCookie", "my name", 24);
// Stores the string "my name" in the cookie "myCookie" which expires after 24 hours.
function writeCookie(name, value, hours)
{
  var expire = "";
  if(hours != null)
  {
	expire = new Date((new Date()).getTime() + hours * 3600000);
	expire = "; expires=" + expire.toGMTString();
  }
  document.cookie = name + "=" + escape(value) + expire;
}
// Example:
// alert( readCookie("myCookie") );
function readCookie(name)
{
  var cookieValue = "";
  var search = name + "=";
  if(document.cookie.length > 0)
  { 
    offset = document.cookie.indexOf(search);
    if (offset != -1)
    { 
      offset += search.length;
      end = document.cookie.indexOf(";", offset);
      if (end == -1) end = document.cookie.length;
      cookieValue = unescape(document.cookie.substring(offset, end))
    }
  }
  return cookieValue;
}
function onMover(index,linkurl,pagename)
{
	imageValue=readCookie(pagename);
	if(imageValue==index)
	return false;
	imageID='image'+index;
	document.getElementById(imageID).background="../images/menu7.gif";
	//bgColor='#FFE3D2';
	window.status=linkurl;
	return true;
	
}
function onMout(index,pagename)
{
	imageValue=readCookie(pagename);
	if(imageValue==index)
	return false;
	imageID='image'+index;
	//alert(imageID);
	//return false;
	document.getElementById(imageID).background="";
	//bgColor='#999999';
	window.status='';
	return true;
}
function onlod(pagename)
{
	imageValue=readCookie(pagename);
	if(imageValue=="")
	return false;
	imageID='image'+imageValue;
	//if(pagename=='aboutus'&&imageValue==3)
		//document.getElementById('colaboration').style.display="";
	document.getElementById(imageID).background="../images/menu5.gif";
}
function onunlod()
{
	writeCookie('imageValue', 0, -1);
}