var d=document;
function togglePrice(i){
	var plus=d.getElementById("plus_"+i);
	var t=d.getElementById("table"+i);
	var folder=d.getElementById("folder"+i);
	if(plus==undefined)return;
	if(plus.innerHTML=="+"){
		plus.innerHTML="–";
		classRemove(t,"hidden");
		classAdd(plus,"open");
		classAdd(folder,"fopen");
	}
	else {
		plus.innerHTML="+";
		classAdd(t,"hidden");
		classRemove(plus,"open");
		classRemove(folder,"fopen");
	}
	//if(tr!=undefined)classRemove(tr,"shown");
}