$(document).ready(function (){
	var overlay = $(document.createElement('div'))
					.css({position: 'absolute', 
					  	  top: 0, 
						  left: 0, 
						  width: $(document).width(), 
						  height: $(document).height(),
						  zIndex: 10,
						  background: '#000000',
						  opacity: 0.4});

	$("a.manager_call_btn").click(function (){
		$("#manager_call").animate({top:'90'});
		$('body').append(overlay);							
		
		overlay.click(function (){
			$("#manager_call").animate({top:'-436'});
			overlay.remove();
			return false;
		});				
		return false;
	});
	
	$("#manager_call .clsbtn").click(function(){
		$("#manager_call").animate({top:'-436'});
		overlay.remove();
		return false;
	});
	
	
	
});