function $(elm) {
	return document.getElementById(elm);
}

window.onload = function() {
	$("medium_css").disabled = true;
	$("large_css").disabled = true;

	$("text_small").onclick = function() {
		this.className = "selected";
		$("text_medium").className = "";
		$("text_large").className = "";
		
		$("medium_css").disabled = true;
		$("large_css").disabled = true;
		return false;
	}

	$("text_medium").onclick = function() {
		this.className = "selected";
		$("text_small").className = "";
		$("text_large").className = "";
		
		$("medium_css").disabled = false;
		$("large_css").disabled = true;
		return false;
	}

	$("text_large").onclick = function() {
		this.className = "selected";
		$("text_small").className = "";
		$("text_medium").className = "";
		
		$("medium_css").disabled = true;
		$("large_css").disabled = false;
		return false;
	}

}