function $(s){return typeof s == 'object'?s:document.getElementById(s);}
function GE(s){return typeof s == 'object'?s:document.getElementById(s);}

function showtabs(obj,id){
	ii = cid[obj];
	var tnow = GE(obj + "_t" + ii);
	var cnow = GE(obj + "_c" + ii);

	var twil = GE(obj + "_t" + id);
	var cwil = GE(obj + "_c" + id);
	
	if(id != ii)
	{
		tnow.className = cla[obj]+'_off';
		twil.className = cla[obj]+'_on';
		
		cnow.style.display='none';
		cwil.style.display='';
		
		cid[obj] = id;
	}
}
//标签
var cid = Array();
cid["c1"] = 2;
cid["c2"] = 1;
cid["c3"] = 1;
cid["c4"] = 1;
cid["c5"] = 1;

var cla = Array();
cla["c1"] = "inf";
cla["c2"] = "inf_t";
cla["c3"] = "inf_t";
cla["c4"] = "inf_t";
cla["c5"] = "inf_t";