function mBox( ui ){

	var shade = $('<div id="Shade"></div>');
	var winWidth = $(window).width();
	var winHeight = $(window).height();
	
	var docHeight = $(document).height();
	var y = $(window).scrollTop();
	shade.css({
		'position' : 'absolute',
		'top' : '0px',
		'left' : '0px',
		'background-color' : '#010',
		'opacity' : '0.5',
		'width' : winWidth,
		'height' : docHeight,
		'z-index' : '200'
	});
	
	$('body').append(shade);
	
	var formWin= $('<div id="mBox"></div>');
	
	
	
	var cont;
	
	$.ajax({
		type: 'get',
		url:  ui,
		dataType: 'html',
		success: function( html, textStatus ){
			$('#mBox').html( html );
			
			var $boxHeight = $('#mBoxSize').attr('height');
			var $boxWidth = $('#mBoxSize').attr('width');

			var bhh = $boxHeight / 2;
			var bwh = $boxWidth / 2;
			
			var posTop = ((winHeight / 2) - bhh) + y - 100;
			var posLeft = winWidth / 2 - bwh;
			
			formWin.css({
				'position' : 'absolute',
				'top' : posTop,
				'left' : posLeft,
				'width' : $boxWidth+'px',
				'height' : $boxHeight+'px',
				'z-index' : '201'
			});


		},
		error: function(){
			alert('AJAX error: File not found!');
		}
	});
	
	$('body').append(formWin);
	
	$('#Shade').bind('click',function(){
		$('#Shade').remove();
		$('#mBox').remove();
	});		

}