var visset = 0;
function setItem(val){
	var elm = document.getElementById("inp"+val);
	elm.disabled = false;
	visset += 1;
}
function unsetItem(val){
	visset -= 1;
	if(visset<=0){
		var elm = document.getElementById("inp"+val);
		elm.disabled = true;
	}
}
function inputSetItem(val){
	var elm = document.getElementById("inp"+val);
	elm.disabled = false;
	visset += 1;
}
function inputunSetItem(val){
	visset -= 1;
	if(visset<=0){
		var elm = document.getElementById("inp"+val);
		elm.disabled = true;
	}
}