var hh = 0, i, ct = this.getRenderedItems(this.container), len = ct.length, p;
// Add up all the header heights
for (i = 0; i < len; i++) {
var hh = 0, i, ct = this.getRenderedItems(this.container), len = ct.length, p;
// Add up all the header heights
for (i = 0; i < len; i++) {