var speaker = false;
$(document).ready(function() {
	$('a.wanttospeak').click(
		function(){
			if(!speaker)
				animateSpeakerReg("0px","top", true);
			else if(speaker)
				animateSpeakerReg("-199px","bottom", false);
		});
});

function animateSpeakerReg(val, bgpos, open){
	$('body').animate({
	    marginTop: val
	  },200,function(){
		speaker = open;
		$('a.wanttospeak').css("background-position",bgpos);
		});
}