var floor = document.all;

function channeTableE(type1){
	floor.tableE1.className="icoGreen13px";
	floor.tableE2.className="icoGreen13px";
	floor["tableE"+type1].className="icoWhite14px";
	
	floor.tableE1.background="";
	floor.tableE2.background="";
	floor["tableE"+type1].background="images/menu_mzbut_bg1.gif";
	
	floor.xianE1.style.display='';
	floor["xianE"+(type1-1)].style.display='none';
	floor["xianE"+type1].style.display='none';
	
	floor.layerE1.style.display='none';
	floor.layerE2.style.display='none';
	floor["layerE"+type1].style.display='';
}