var customNavTree51 = WpNavBar.readTree({
"childArray" : [
{   sTitle:'Skeletal System',
    sUrl:'',
    sTarget:'_self',"childArray" : [
    {   sTitle:'Skeletal System',
        sUrl:'http://www.proventus.org.uk/page308.html',
        sTarget:'_self'
    },
    {   sTitle:'Bone Marrow',
        sUrl:'http://www.proventus.org.uk/page502.html',
        sTarget:'_self'
    },
    {   sTitle:'The Skull',
        sUrl:'http://www.proventus.org.uk/page470.html',
        sTarget:'_self'
    }]
}]
});