Unexpected Token ILLEGAL on Javascript For Loop

I'm attempting to write a simple randomizer that will randomly set group's background position individually.

HTML:

<div class="button"></div>
<div class="button"></div>
<div class="button"></div>
<div class="button"></div>
<div class="button"></div>
<div class="button"></div>
<div class="button"></div>
<div class="button"></div>
<div class="button"></div>
<div class="button"></div>

CSS:

.button{
    width: 100px;
    height: 40px;
    background:url(redMetal.jpg) no-repeat;
    border: 1px solid #ff0000;
    display: inline-block;
    float: left;
    margin: 20px;
    text-align: center;
    color: #fff;
}

Javascript:

var button = document.getElementsByClassName("button");
    for (var i = 0; i < button.length; i++) {
        x = Math.random() * (3499 - 0) + 0;
        y = Math.random() * (2359 - 0) + 0;
        button[i].style.backgroundPosition =  (x * -1) + "px" + (y * -1) + "px";
        button[i].innerHTML = i;
    }​

When I do this, I get an UNCAUGHT SYNTAXERROR: Unexpected token ILLEGAL right after the closing curly brace of the for loop, and I don't understand why.


You really have an illegal character after the last curly brace, see what i got copy-pasting that code on jsfiddle, notice the red dot.

    button[i].innerHTML = i;
}​*

Open that file with another editor, eg vim an check for weird characters with :set list .

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