var feaPrevNum = 1;

function $() {
	var elements = new Array();
	for (var i = 0; i < arguments.length; i++) {
		var element = arguments[i];
		if (typeof element == 'string')
			element = document.getElementById(element);
		if (arguments.length == 1)
			return element;
		elements.push(element);
	}
	return elements;
}

function swap(id){
	feaCurNum = getNum(id);
	if (feaCurNum != feaPrevNum)
	{
	curTab = "link" + feaCurNum;
	prevTab = "link" + feaPrevNum;
	$(curTab).style.backgroundColor = "#ba8645";
	$(prevTab).style.backgroundColor = "";
	}
	feaPrevNum = feaCurNum;
}


function getNum(id){
	return id.substring(id.length,id.length-1);
}