Jquery conflict with jquery tools
<p>My problem is after adding:</p>

<pre><code>&lt;script src="http://cdn.jquerytools.org/1.2.7/full/jquery.tools.min.js"&gt;&lt;/script&gt;
</code></pre>

<p>to my site, Plugins like nivoslider, and other jquery scripts are not working.</p>

<p>but in order to make working the code below i need "jquery tools"</p>

<pre><code>&lt;script type="text/javascript"&gt;&lt;!--
    function GetAvailProductSizes() {
        $('select#productsize option').remove();
        $('select#productsize').append('&lt;option value=""&gt;&lt;? echo $langdata['oneprodpage_selectsize']; ?&gt;...&lt;/option&gt;');

        var color = $('#productcolor').val();
        if (color &gt; 0) {
            var availsizes;
            var http_request = new XMLHttpRequest();
            http_request.open( "GET", '&lt;? echo ROOT; ?&gt;/autocompleteavailsizes/?productid=&lt;? echo $thisproduct['id']; ?&gt;&amp;color=' + color, true );
            http_request.send(null);
            http_request.onreadystatechange = function () {
                if ( http_request.readyState == 4 ) {
                    if ( http_request.status == 200 ) {
                        availsizes = eval( "(" + http_request.responseText + ")" );

                        for (var i = 0; i &lt; availsizes.length; i++) {
                            $('select#productsize').append('&lt;option value="' + availsizes[i].id + '"&gt;' + availsizes[i].name + '&lt;/option&gt;');
                        };
                    } else {
                        alert( "There was a problem with the URL." );
                    }
                    http_request = null;
                }
            };
        };
    }
//--&gt;
&lt;/script&gt;
</code></pre>

<p>it works only if i include:</p>

<pre><code>&lt;script src="http://cdn.jquerytools.org/1.2.7/full/jquery.tools.min.js"&gt;&lt;/script&gt;
</code></pre>

<p>BUT if i do so, other jquery scripts are not working, i mean nivoslider and other simple popup divs...</p>

<p>How should i solve this problem?</p>
