javascript - Jquery Animating between colours -


fairly rudimentary question. if have random number variable picks random selection out of array example "red" want able store current color whilst picks new colour after 5 seconds , animate current colour "red" new colours example "green" fades background or body of document 1 other.

i have code have written far unsure how this, know have store current color if found find next color im not sure how.

    <!doctype html> <html> <head>   <meta charset="utf-8"> <title>roger</title> <link rel="stylesheet" href="roger.css"/> <script src="jquery-1.11.0.min.js" type="text/javascript"></script>  <script src="roger.js" type="text/javascript"></script> </head>  <body>  <div class="container">    <!-- end .container --></div> </body>  <script>  var colours = []; var randcol; var curcol;  colours[0] = "red"; colours[1] = "green"; colours[2] = "blue"; colours[3] = "black"; colours[4] = "grey";  window.setinterval(function(){  randcol = math.floor(math.random() * 5) + 0  alert(randcol);  var nextcol= colours[randcol];      if(colours[randcol] == colours[0]) {  document.body.style.backgroundcolor="red";  curcol = "red";      }     else if(colours[randcol] == colours[1]) {  document.body.style.backgroundcolor="green";    curcol = "green";       }     else if(colours[randcol] == colours[2]) {  document.body.style.backgroundcolor="blue";   curcol = "green";       }     else if(colours[randcol] == colours[3]) {  document.body.style.backgroundcolor="black";    curcol = "black";       }     else if(colours[randcol] == colours[4]) {  document.body.style.backgroundcolor="grey";   curcol = "grey";       }   }, 5000);    </script> </html>

i'd try more 

<!doctype html>     <head>         <meta charset="utf-8">         <title>roger</title>         <link rel="stylesheet" href="roger.css" />         <script src="jquery-1.11.0.min.js" type="text/javascript"></script>         <script src="roger.js" type="text/javascript"></script>     </head>     <body>         <div class="container">             <!-- end .container -->         </div>         <script>             var colours = [                 "red",                 "green",                 "blue",                 "black",                 "grey"             ],                 prevcol = null;               window.setinterval(function () {                 var randcol = math.floor(math.random() * colours.length)                 while (randcol === prevcol) randcol = math.floor(math.random() * 5);                 prevcol = randcol;                 document.body.style.backgroundcolor = colours[randcol];             }, 5000);         </script>     </body> </html>

fiddle

to animate colors jquery you'll need plugin, that's you're going next ?


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