/* navigation */

var idNavigation = ['navigation-main'];
var oNav, navEls;


navHover = function(){
    for(var i = 0; i < idNavigation.length; i++){
        oNav = document.getElementById(idNavigation[i]);
        if(oNav)
        {
            navEls = oNav.getElementsByTagName('LI');
            for(var j = 0; j < navEls.length; j++){
                navEls[j].onmouseover = function(){
                    this.className += ' hover';
                }
                navEls[j].onmouseout = function(){
                    this.className = this.className.replace(new RegExp(' hover\\b'), '');
                }
            }
        }
    }
}

navAccessible = function(){
    for(var i = 0; i < idNavigation.length; i++){
        oNav = document.getElementById(idNavigation[i]);
        if(oNav){
          	navEls = oNav.getElementsByTagName('A');
          	for (var j = 0; j < navEls.length; j++){
            		navEls[j].onfocus = function(){
              			this.className += (this.className.length > 0? ' ' : '') + 'focus'; //a:focus
              			this.parentNode.className += (this.parentNode.className.length > 0 ? ' ': '') + 'hover'; //li < a:focus
              			if(this.parentNode.parentNode.parentNode.nodeName == 'LI'){
                				this.parentNode.parentNode.parentNode.className += (this.parentNode.parentNode.parentNode.className.length > 0? ' ': '') + 'hover'; //li < ul < li < a:focus
                				if(this.parentNode.parentNode.parentNode.parentNode.parentNode.nodeName == 'LI'){
                  					this.parentNode.parentNode.parentNode.parentNode.parentNode.className += (this.parentNode.parentNode.parentNode.parentNode.parentNode.className.length > 0? ' ': '') + 'hover'; //li < ul < li < ul < li < a:focus
                    				if(this.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode.nodeName == 'LI'){
                      					this.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode.className += (this.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode.className.length > 0? ' ': '') + 'hover'; //li < ul < li < ul < li < ul < li < a:focus
                            }
                        }
              			}
            		}
            		navEls[j].onblur = function(){
              			this.className = this.className.replace(new RegExp('( ?|^)focus\\b'), '');
              			this.parentNode.className = this.parentNode.className.replace(new RegExp('( ?|^)hover\\b'), '');
              			if(this.parentNode.parentNode.parentNode.nodeName == 'LI'){
                				this.parentNode.parentNode.parentNode.className = this.parentNode.parentNode.parentNode.className.replace(new RegExp('( ?|^)hover\\b'), '');
                				if(this.parentNode.parentNode.parentNode.parentNode.parentNode.nodeName == 'LI'){
                  					this.parentNode.parentNode.parentNode.parentNode.parentNode.className = this.parentNode.parentNode.parentNode.parentNode.parentNode.className.replace(new RegExp('( ?|^)hover\\b'), '');
                    				if(this.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode.nodeName == 'LI'){
                      					this.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode.className = this.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode.className.replace(new RegExp('( ?|^)hover\\b'), '');
                            }
                        }
              			}
            		}
            }
      	}
    }
}

// only ie needs the navHover script. all need the accessibility script...
if(window.addEventListener)
  window.addEventListener('load', navAccessible, false); // gecko, safari, konqueror and standard
else if(document.addEventListener)
  document.addEventListener('load', navAccessible, false); // opera 7
else if(window.attachEvent)
{ // win/ie
	window.attachEvent('onload', navHover);
	window.attachEvent('onload', navAccessible);
}
else
{ // mac/ie5
	if(typeof window.onload == 'function')
  {
		var existing = onload;
		window.onload = function()
    {
			existing();
			navHover();
			navAccessible();
		}
	}
  else
  {
		window.onload = function()
    {
			navHover();
			navAccessible();
		}
	}
}