clever jQuery function to show more or less of an item

show.js

	 //call relevant function on click of showMore/Less links
	 $("[id^=show]").click(function(){
		 var functionCall = $(this).attr("id").substring(4,8);
		 var boxName = $(this).attr("id").substring(8);
		 window["show" + functionCall](boxName);
	 });

/**
 * @param boxName string 
 * @pre boxName = Subjects || Notes
 * @post moreBoxName = hidden
 * 
 * hides box with id from param
 */
function showLess(boxName){
	var divId = "#more" + boxName;
	var moreLink = "#showMore" + boxName;
	$(moreLink).show();
	$(divId).hide();
};

/**
 * @param boxName string 
 * @pre boxName = Subjects || Notes
 * @post moreBoxName = shown
 * 
 * displays box with id from param
 */
function showMore(boxName){
	var divId = "#more" +boxName;
	var moreLink = "#showMore" + boxName;
	$(moreLink).hide();
	$(divId).show();
};