change color of div using js after select color

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hi 2 all

i have 8 div tags each of them have id a1 and the next have id of a2 and third have id of a3

and so on each have color

and i also have container div for my web site which have class

.pro_wrapper

i need when user select div of a1 for example change the color of the wrapper of the site to a1 color my code is below didn't work

C#

for(var i=1;i<=8;i++)
       {

        var color=$("#"+a(i));
        $(color).click(function()
        {


        switch(color)
        {
            case (i==1):
            $(".pro_wrapper").css("background-color","red");
            break;
            case (i==2):
            $(".pro_wrapper").css("background-color","yellow");
            break;
        }
        });
       }

note that i already write $(document).ready line

what's wrong with my code

Posted 18-Nov-13 2:18am

TheSniper105

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Kornfeld Eliyahu Peter · Accepted Answer · 2013-11-18T02:46:00

HTML

<!DOCTYPE html />
<html>
<head>
    <title>Untitled Page</title>
    <script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
    <style type="text/css">
        .wrapper
        {
            width: 200px;
            height: 200px;
        }

        .color
        {
            width: 20px;
            height: 20px;
        }

        .red
        {
            background-color: #f00;
        }

        .green
        {
            background-color: #0f0;
        }

        .blue
        {
            background-color: #00f;
        }
    </style>
</head>
<body>
    <div class="wrapper"></div>
    <div class="color red" id="a1"></div>
    <div class="color green" id="a2"></div>
    <div class="color blue" id="a3"></div>

    <script type="text/javascript">
        $(document).ready(
            function () {
                for (var i = 1; i <= 3; i++) {
                    $("#a" + i).click(function () {
                        $(".wrapper").css("background-color", $(this).css("background-color"));
                    });
                }
            }
        );
    </script>
</body>
</html>