[jQuery] Breadcumb, error in for-loop

[jQuery] Breadcumb, error in for-loop


Hi!
I'm not an expert in js, maybe you can help me with this one:
    var BrCu = here.parents('li').find("a:first");
    for (i=3; i=0; i--){
    if (BrCU[i] != undefined){
    $('#breadcumb span.ins').html('>' + BrCu[i]);
    }
    };
BrCu gives me what I want. But the for-loop is not writing anything to
the page.
Have I misunderstood something?
var here is current location in a navigation-menu (ul li a ul li a ..)
Thanks!