function MM_showLayer(currentitem,hilightitem)
{		

	if(currentitem != hilightitem) {MM_showHideLayers(hilightitem,'','show');}
	if(hilightitem != 'homewhite' && currentitem != 'homewhite'){MM_showHideLayers('homewhite','','hide');}
	if(hilightitem != 'aboutwhite' && currentitem != 'aboutwhite'){MM_showHideLayers('aboutwhite','','hide');}
	if(hilightitem != 'functionswhite' && currentitem != 'functionswhite'){MM_showHideLayers('functionswhite','','hide');}
	if(hilightitem != 'conferenceswhite' && currentitem != 'conferenceswhite'){MM_showHideLayers('conferenceswhite','','hide');}
	if(hilightitem != 'whatsonwhite' && currentitem != 'whatsonwhite'){MM_showHideLayers('whatsonwhite','','hide');}
	if(hilightitem != 'sportingwhite' && currentitem != 'sportingwhite'){MM_showHideLayers('sportingwhite','','hide');}
	if(hilightitem != 'eventswhite' && currentitem != 'eventswhite'){MM_showHideLayers('eventswhite','','hide');}
	if(hilightitem != 'becomememberwhite' && currentitem != 'becomememberwhite'){MM_showHideLayers('becomememberwhite','','hide');}
	if(hilightitem != 'contactwhite' && currentitem != 'contactwhite'){MM_showHideLayers('contactwhite','','hide');}
}

function MM_hideLayers(currentitem)
{
	if(currentitem != 'homewhite'){MM_showHideLayers('homewhite','','hide');}
	if(currentitem != 'aboutwhite'){MM_showHideLayers('aboutwhite','','hide');}
	if(currentitem != 'functionswhite'){MM_showHideLayers('functionswhite','','hide');}
	if(currentitem != 'conferenceswhite'){MM_showHideLayers('conferenceswhite','','hide');}
	if(currentitem != 'whatsonwhite'){MM_showHideLayers('whatsonwhite','','hide');}
	if(currentitem != 'sportingwhite'){MM_showHideLayers('sportingwhite','','hide');}
	if(currentitem != 'eventswhite'){MM_showHideLayers('eventswhite','','hide');}
	if(currentitem != 'becomememberwhite'){MM_showHideLayers('becomememberwhite','','hide');}
	if(currentitem != 'contactwhite'){MM_showHideLayers('contactwhite','','hide');}
}


function MM_findObj(n, d)
{
	var p,i,x; 
	
	if(!d)
	{
		d=document;
	}
	if((p=n.indexOf("?"))>0&&parent.frames.length)
	{
		d=parent.frames[n.substring(p+1)].document;
		n=n.substring(0,p);
	}
	if(!(x=d[n])&&d.all)
	{
		x=d.all[n]; 
	}
	for (i=0;!x&&i<d.forms.length;i++)
	{
		x=d.forms[i][n];
	}
	for(i=0;!x&&d.layers&&i<d.layers.length;i++)
	{
		x=MM_findObj(n,d.layers[i].document);
	}
	if(!x && document.getElementById)
	{
		x=document.getElementById(n);
	}
	return x;
}

function MM_showHideLayers()
{
  	var i,p,v,obj,args=MM_showHideLayers.arguments;
	for (i=0; i<(args.length-2); i+=3)
	{
		if ((obj=MM_findObj(args[i]))!=null)
		{
			v=args[i+2];
	    	if (obj.style)
			{
				obj=obj.style;
				v=(v=='show')?'visible':(v='hide')?'hidden':v;
			}
	    	obj.visibility=v;
		}
	}
}