$(document).ready(function() {
  $(function(){
		$('#textsize a').click(function(){
			var ourTextA = $('p');
			var ourTextB = $('#side-content ul');
			var currFontSize = ourTextA.css('fontSize');
			var finalNum = parseFloat(currFontSize);
			var stringEnding = currFontSize.slice(-2);
			if(this.id == 'large') {
				finalNum = 16;
			}
			else if (this.id == 'regular'){
				finalNum = 13;
			}
			ourTextA.css('fontSize', finalNum + stringEnding);
			ourTextB.css('fontSize', finalNum + stringEnding);
		});
	});

});



$(document).ready(function(){
		//hide the all of the element with class msg_body
		$(".msg_body").hide();
		//toggle the componenet with class msg_body
		$(".msg_head").click(function(){
			$(this).next(".msg_body").slideToggle(600);
		});
	});