dhtmlxtabbar

I want to use a tabbar within a layout (“c”), in “a” is a dhtmlxaccordion, in “b” is a dhtmlxtree, I cant get iframes to work properly loading a url, sample code is

dhxLayout.cells(“c”).setText(“applications”);

var dhxtabbar = dhxLayout.cells(“c”).attachTabbar();

dhxtabbar.enableAutoReSize(true,true);

dhxtabbar.enableTabCloseButton(true);

dhxtabbar.setHrefMode(“iframes”);

dhxtabbar.setSkinColors("#FCFBFC","#F4F3EE");

dhxtabbar.setImagePath(“dhtmlx/dhtmlxTabbar/codebase/imgs/”);

dhxtabbar.addTab(“tab1”,“tab1”,“100”);

dhxtabbar.addTab(“tab2”,“tab2”,“100”);

dhxtabbar.forceLoad(“tab1”,“http://www.google.com”);

Hello,
try to use
    dhxtabbar.setContentHref(“tab1”,“http://www.google.com”);
instead of
    dhxtabbar.forceLoad(“tab1”,“http://www.google.com”);