How do I hide a div using cookies with javascript

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I am trying to create a pop-up message which welcomes you at the start. However I find it annoying if you have refresh the page the pop-up comes back, the solution would be cookies. But I can not get it working, what am I doing wrong. Below the html, css and js.

HTML

<body>

<div id="overlay" class="cover blur-in">
  <div class="content"></div>
    </div>
	    <div class="row pop-up">
		  <div class="box small-6 large-centered">
		    <a href="#" class="close-button">✖</a>
		    <h3 class="popup">Welcome</h3>
		    <p>info </p>
		    <p>info</p>
		    <a href="#" class="button">press for facebook</a>
		  </div>
		</div></body>

CSS

.cover {
    height: 100%;
    width: 100%;
    position: absolute;
    z-index: 1;
}

.blur-in {
    -webkit-animation: blur 2s forwards;
    -moz-animation: blur 2s forwards;
    -o-animation: blur 2s forwards;
    animation: blur 2s forwards;
}

.blur-out {
    -webkit-animation: blur-out 2s forwards;
    -moz-animation: blur-out 2s forwards;
    -o-animation: blur-out 2s forwards;
    animation: blur-out 2s forwards;
}

@-webkit-keyframes blur {
    0% {
        -webkit-filter: blur(0px);
        -moz-filter: blur(0px);
        -o-filter: blur(0px);
        -ms-filter: blur(0px);
        filter: blur(0px);
    }

    100% {
        -webkit-filter: blur(4px);
        -moz-filter: blur(4px);
        -o-filter: blur(4px);
        -ms-filter: blur(4px);
        filter: blur(4px);
    }
}

@-moz-keyframes blur {
    0% {
        -webkit-filter: blur(0px);
        -moz-filter: blur(0px);
        -o-filter: blur(0px);
        -ms-filter: blur(0px);
        filter: blur(0px);
    }

    100% {
        -webkit-filter: blur(4px);
        -moz-filter: blur(4px);
        -o-filter: blur(4px);
        -ms-filter: blur(4px);
        filter: blur(4px);
    }
}

@-o-keyframes blur {
    0% {
        -webkit-filter: blur(0px);
        -moz-filter: blur(0px);
        -o-filter: blur(0px);
        -ms-filter: blur(0px);
        filter: blur(0px);
    }

    100% {
        -webkit-filter: blur(4px);
        -moz-filter: blur(4px);
        -o-filter: blur(4px);
        -ms-filter: blur(4px);
        filter: blur(4px);
    }
}

@keyframes blur {
    0% {
        -webkit-filter: blur(0px);
        -moz-filter: blur(0px);
        -o-filter: blur(0px);
        -ms-filter: blur(0px);
        filter: blur(0px);
    }

    100% {
        -webkit-filter: blur(4px);
        -moz-filter: blur(4px);
        -o-filter: blur(4px);
        -ms-filter: blur(4px);
        filter: blur(4px);
    }
}

@-webkit-keyframes blur-out {
    0% {
        -webkit-filter: blur(4px);
        -moz-filter: blur(4px);
        -o-filter: blur(4px);
        -ms-filter: blur(4px);
        filter: blur(4px);
    }

    100% {
        -webkit-filter: blur(0px);
        -moz-filter: blur(0px);
        -o-filter: blur(0px);
        -ms-filter: blur(0px);
        filter: blur(0px);
    }
}

@-moz-keyframes blur-out {
    0% {
        -webkit-filter: blur(4px);
        -moz-filter: blur(4px);
        -o-filter: blur(4px);
        -ms-filter: blur(4px);
        filter: blur(4px);
    }

    100% {
        -webkit-filter: blur(0px);
        -moz-filter: blur(0px);
        -o-filter: blur(0px);
        -ms-filter: blur(0px);
        filter: blur(0px);
    }
}

@-o-keyframes blur-out {
    0% {
        -webkit-filter: blur(4px);
        -moz-filter: blur(4px);
        -o-filter: blur(4px);
        -ms-filter: blur(4px);
        filter: blur(4px);
    }

    100% {
        -webkit-filter: blur(0px);
        -moz-filter: blur(0px);
        -o-filter: blur(0px);
        -ms-filter: blur(0px);
        filter: blur(0px);
    }
}

@keyframes blur-out {
    0% {
        -webkit-filter: blur(4px);
        -moz-filter: blur(4px);
        -o-filter: blur(4px);
        -ms-filter: blur(4px);
        filter: blur(4px);
    }

    100% {
        -webkit-filter: blur(0px);
        -moz-filter: blur(0px);
        -o-filter: blur(0px);
        -ms-filter: blur(0px);
        filter: blur(0px);
    }
}

.pop-up {
    position: fixed;
    margin: 5% auto;
    left: 0;
    right: 0;
    z-index: 2;
}

.box {
    background-color: whitesmoke;
    text-align: center;
    margin-left: 20%;
    margin-right: 20%;
    margin-top: 10%;
    position: relative;
    -webkit-box-shadow: 0px 4px 6px 0px rgba(0,0,0,0.1);
    -moz-box-shadow: 0px 4px 6px 0px rgba(0,0,0,0.1);
    box-shadow: 0px 4px 6px 0px rgba(0,0,0,0.1);
}


.button:hover {
    background-color: #7CCF29;
    -webkit-box-shadow: 0px 4px 6px 0px rgba(0,0,0,0.1);
    -moz-box-shadow: 0px 4px 6px 0px rgba(0,0,0,0.1);
    box-shadow: 0px 4px 6px 0px rgba(0,0,0,0.1);
}

.close-button {
    transition: all 0.5s ease;
    position: absolute;
    background-color: #FF9980;
    padding: 1.5px 7px;
    left: 0;
    margin-left: -10px;
    margin-top: -9px;
    border-radius: 50%;
    border: 2px solid #fff;
    color: white;
    -webkit-box-shadow: -4px -2px 6px 0px rgba(0,0,0,0.1);
    -moz-box-shadow: -4px -2px 6px 0px rgba(0,0,0,0.1);
    box-shadow: -3px 1px 6px 0px rgba(0,0,0,0.1);
}

.close-button:hover {
    background-color: tomato;
    color: #fff;
}

.button {
	margin: 10px;
}

h3.popup {
	line-height: 1.5;
}

JavaScript

<pre>$(document).ready(function() {

  if (!readCookie('hide')) {
    $('.pop-up').hide();
  	$('.pop-up').fadeIn(1000);

  $('.close-button').click(function(e) {
    
    $('.pop-up').fadeOut(700);
      $('#overlay').removeClass('blur-in');
      $('#overlay').addClass('blur-out');
      e.stopPropagation();  }
    
    createCookie('hide', true, 1)
    return false;
  });

});

function createCookie(name,value,days) {
  if (days) {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    var expires = "; expires="+date.toGMTString();
  }
  else var expires2 = "";
  document.cookie = name+"="+value+expires2+"; path=/";
}

function readCookie(name) {
  var nameEQ = name + "=";
  var ca = document.cookie.split(';');
  for(var i=0;i < ca.length;i++) {
    var c = ca[i];
    while (c.charAt(0)==' ') c = c.substring(1,c.length);
    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
  }
  return null;
}

function eraseCookie(name) {
  createCookie(name,"",-1);
}

What I have tried:

I have tried making the overlay id display as "none" but this did not the trick. currently the page loads with the welcome message but you can not close it.

I did not forget to load the css and js ;)

yours sincerely,
MB

Posted 3-Feb-18 5:42am

MB01

Updated 3-Feb-18 14:33pm

v2

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Bryian Tan · Accepted Answer · 2018-02-03T14:33:00

If I understood the question correctly, the first time a user visit a page, the Welcome... will show, the second time (refresh page) the Welcome... will not show. That said, if the cookie hide=true, don't show the welcome message.

There are some issue with the posted codes.

1. Syntax error, there no closing tag on the !readCookie('hide')
2. Syntax error, missing closing tag for document.ready
3. if (!readCookie('hide')) {, this should be if (readCookie('hide')) { ?? if hide=true, hide it!
4. The readCookie return a string, that need to cast to boolean
5. Inside the if (!readCookie('hide')) { , the code have $('.pop-up').fadeIn(1000); , which I think it should be fadeout (hide it)
... look at the example for more issue.

Here is a working example: CP_cookies - JSFiddle[^]