var nav_1tree = WpNavBar.readTree({
"childArray" : [
{   'sTitle':'Home',
    'bIsExternal':true,
    'bIsWebPath':true,
    'sUrl':'index.html'
},
{   'sTitle':'Product',
    'bIsExternal':true,
    'bIsWebPath':true,
    'sUrl':'page2.html',
    'sTarget':'_self'
},
{   'sTitle':'Background',
    'bIsExternal':true,
    'bIsWebPath':true,
    'sUrl':'page3.html',
    'sTarget':'_self'
},
{   'sTitle':'Contact Us',
    'bIsExternal':true,
    'bIsWebPath':true,
    'sUrl':'page4.html'
}]
});