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