Include div with an ID twice, possible?
<p>I want to include a file(menu.php) twice, but inside that file I have a div with an ID.
Here is menu.php :</p>

<pre><code>&lt;?php
    for ($b = 1; $b &lt;= 10; $b++)
    {
        $width = 220;
        $width /= $b;
?&gt;
    &lt;div id="menuH&lt;?php print $b; ?&gt;" style="display: none;"&gt;
    &lt;?php
        for ($a = 1; $a &lt;= $b; $a++)
        {
            print '&lt;div class="voorbeeld_menuH" style="width: '.($width - 1).'px;" &gt;&lt;b&gt;M&lt;/b&gt;&lt;/div&gt;';
        }
    ?&gt;
    &lt;/div&gt;
&lt;?php
    }
    for ($b = 1; $b &lt;= 10; $b++)
    {
?&gt;
        &lt;div id="menuV&lt;?php print $b; ?&gt;" style="display: none;"&gt;
        &lt;?php
            for ($a = 1; $a &lt;= $b; $a++)
            {
                print '&lt;div class="voorbeeld_menuV" &gt;&lt;b&gt;M&lt;/b&gt;&lt;/div&gt;';
            }
        ?&gt;
        &lt;/div&gt;
&lt;?php
    }
?&gt;
</code></pre>

<p>Javascript code :</p>

<pre><code>function menu(dropdown)
{
    var myindex_M = dropdown.selectedIndex;
    var waarde_M = dropdown.options[myindex_M].value;
    var i = 1;
    var a = 1;

    if(waarde_M == " - - - -")
    {
        for(i = 1;1 &lt;= 10;i++)
        {    
            document.getElementById("menuH" + i).style.display = "none";
            document.getElementById("menuV" + i).style.display = "none";
        }
    }
    for(i = 1;i &lt;= 10;i++)
    {
        if(waarde_M == "Menu H " + i)
        {
            document.getElementById("menuH" + i).style.display = "";
            for(a = 1;a &lt;= 10;a++)
            {
                if(a == i) { continue; }
                document.getElementById("menuH" + a).style.display = "none";
            }   
        }
    }
}
</code></pre>

<p>Where I want to include this : </p>

<pre><code>&lt;?php
    include("Menu.php");

    for ($b = 1; $b &lt;= 5; $b++)
    {
?&gt;
        &lt;div id="content" style="display: none;"&gt;
        &lt;?php
            for ($a = 1; $a &lt;= $b; $a++)
            {
                print '&lt;div class="voorbeeld_content'.$b.'"&gt;&lt;b&gt;Content&lt;/b&gt;&lt;/div&gt;';
            }
        ?&gt;
        &lt;/div&gt;
&lt;?php
    }
?&gt;
</code></pre>

<p>and include here too : </p>

<pre><code>&lt;?php
    include("Menu.php");

    for ($b = 1; $b &lt;= 5; $b++)
    {
?&gt;
        &lt;div id="header" style="display: none;"&gt;
        &lt;?php
            for ($a = 1; $a &lt;= $b; $a++)
            {
                print '&lt;div class="vooorbeeld_header.$b.'"&gt;&lt;b&gt;H&lt;/b&gt;&lt;/div&gt;';
            }
        ?&gt;
        &lt;/div&gt;
&lt;?php
    }
?&gt;
</code></pre>

<p>The problem is, the javascript code only works on menu.php, and not in the content.php and header.php, because of the ID tag, how can I solve this?</p>
