$(document).ready(function() {
    //select all the a tag with name equal to modal  
    $(window).load(function(e){ 
    //$('a[name=modal]').click(function(e) {
        //Cancel the link behavior   
        //e.preventDefault();   
       //Get the A tag   
       //var id = $(this).attr('href');   
     
        //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').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   
		$('#dialog').css('top',  winH/2-$('#dialog').height()/2);   
        $('#dialog').css('left', winW/2-$('#dialog').width()/2);   
       
        //transition effect   
        $('#dialog').fadeIn(2000);    
       //
    });   
       
    //if close button is clicked   
    $('.window .close').click(function (e) {   
        //Cancel the link behavior   
        e.preventDefault();   
        $('#mask, .window').hide();   
    });        
       
    //if mask is clicked   
    $('#mask').click(function () {   
        $(this).hide();   
        $('.window').hide();   
    });            
       
});