var tdarr=document.getElementsByTagName("td")
for(var i=0; i<tdarr.length; i++){
	if (tdarr[i].id=="td_resize"){
		tdarr[i].width=tdarr[i].parentNode.clientWidth
	}else
	if (tdarr[i].id=="td_resize_20"){
		tdarr[i].width=20
	}
}