packages/flab/LAB.src.js
function init_script_chain_group() {
				if (!group || !group.scripts) {
					chain.push(group = {scripts:[],finished:true});
				}
			}
function init_script_chain_group() {
				if (!group || !group.scripts) {
					chain.push(group = {scripts:[],finished:true});
				}
			}
setup next chain script group