isIE6 = navigator.userAgent.toLowerCase().indexOf('msie 6') != -1;
if(isIE6)
{
$(document).ready(function() {	

id = '#dialog';
		//Get the screen height and width
		var maskHeight = $(document).height();
		var maskWidth = $(window).width();
	
		//Set heigth and width to mask to fill up the whole screen
		$('#mask').css({'width':maskWidth,'height':maskHeight});
		
		//transition effect		
		$('#mask').fadeIn(1000);	
		$('#mask').fadeTo("slow",0.8);	
	
		//Get the window height and width
		var winH = $(window).height();
		var winW = $(window).width();
              
		//Set the popup window to center
		$(id).css('top',  winH/2-$(id).height()/2);
		$(id).css('left', winW/2-$(id).width()/2);
	
		//transition effect
		$(id).fadeIn(2000);
	
	$('#mask').click(function () {
		$(this).hide();
		$('.window').hide();
	});			
	
        $('#dialog .closebtn').click(function () {
                $('#mask').hide();
                $('.window').hide();
        });

});
}