//modal

$(document).ready(function() {     
      
        //Get the screen height and width  
        var maskHeight = $(document).height();  
        var maskWidth = $(window).width();  
      
        //Set height and width to mask to fill up the whole screen  
        $('#mask').css({'width':maskWidth,'height':maskHeight});  
          
        //transition effect       
            
        $('#mask').fadeTo("slow",1);    
      
        //Get the window height and width  
        var winH = $(window).height();  
        var winW = $(window).width();  
                
        //Set the popup window to center  
        $('#dialog').css('top', 0);  
        $('#dialog').css('left', winW/2-$('#dialog').width()/2);  
      
        //transition effect  
        $('#dialog').fadeIn("fast"); 
      
    //if close button is clicked  
    $('.window .close').click(function (e) {  
        //Cancel the link behavior  
        e.preventDefault();  
		$('#mask, .window').fadeTo("slow",0); 	
        $('#mask, .window').hide();
    });       
      
    //if mask is clicked  
    $('#mask').click(function () {  
        $(this).hide();  
        $('.window').hide();  
    });           
      
});  


function hideModal() {
   $('#mask, .window').fadeTo("slow",0); 	
   $('#mask, .window').hide();  
}