html - How do I prevent my jQuery Gallery from overlapping? -


my jquery image gallery overlapping, preventing view being able select , forth. can me fix issue? here link page http://www.etterengineering.com/sliderdemo.php.

html:

<script src="jquery-ui-full-1.5.2.min.js" type="text/javascript" charset="utf-8"></script> <script type="text/javascript" src="includes/slidergallery.js"> </script> <script type="text/javascript" charset="utf-8">     window.onload = function () {         var container = $('div.slidergallery');         var ul = $('ul', container);          var itemswidth = ul.innerwidth() - container.outerwidth();          $('.slider', container).slider({             min: 0,             max: itemswidth,             handle: '.handle',             stop: function (event, ui) {                 ul.animate({'left' : ui.value * -1}, 500);             },             slide: function (event, ui) {                 ul.css('left', ui.value * -1);             }         });     }; </script> <script type="text/javascript"> $(document).ready(function() { $('a.product').click(function() { var popid = $(this).attr('rel');  var popurl = $(this).attr('href'); $('#' + popid).fadein('slow').css({ 'width': number( popwidth ) }).prepend(); }); }); </script> </head> <body>     <div id="wrapper">     <div id="plc-operator-interface" class="popup_block_parts">             <h3>plc operator interface</h3>                 <p>flameless catalytic heating has brought energy cost savings numerous thermo formers , paint finishers, has proven method of control - gas pulse system (gps).         <br/>the gps unit simple, cost effective , offers option of multi zone configuration, permitting accurate , repeatable heating profiles catalytic heating system. vulcan has pioneered gas pulse technology, having installed many hundreds in both finishing , thermo forming industries control catalytic heaters. typical gas industrial control valves, totally unsuitable controlling catalytic heaters. gps has been proven save gas consumption on other industry control valves.</p>         <div id="fullsize"><img border="0" src="parts_by_man_ok_by_jon/vulcan/plc-operator-interface-2.gif" alt="gas booster approvals"/></div>         </div>        <div id="vert-oven" class="popup_block_parts">         <h3>catalytic oven applications</h3>             <p>control of gps via 1 of 2 operator control types. systems less 5 control zones, simple percentage timer may used. systems greater number of zones, plc based control intuitive operator interface, offers customer best solution multi zone systems, recipe storage, system diagnostics functions , global increase / decrease of heating profile.</p>         <div id="fullsize"><img border="0" src="parts_by_man_ok_by_jon/vulcan/vert-oven-lg.gif" alt="gas booster approvals"/></div>         </div> <div id="gas-pulse" class="popup_block_parts">         <h3>gas pulse</h3>             <p>gas pulse technology uses electrically actuated solenoid valves, cycle gas supply between flow rates of 100% , 20%. longevity , reliability have been hallmarks technology, , synchronizes mechanics of flameless oxidation process within vulcan's patented catalytic heaters. alternating between high , low flow rates, entire depth of catalyst used, ensuring heat distribution across entire heater face @ percentage settings.</p>         <div id="fullsize"><img border="0" src="parts_by_man_ok_by_jon/vulcan/gaspulse_sm.gif" alt="gas booster approvals"/></div>         </div>    <div class="slidergallery">     <ul>             <li><a href="#?w=400" rel="plc-operator-interface" class="product"><img src="parts_by_man_ok_by_jon/vulcan/thumbnails/plc-operator-interface-2_thumbnail.gif" border="0" /></a></li>     <li><a href="#?w=400" rel="vert-oven" class="product"><img src="parts_by_man_ok_by_jon/vulcan/thumbnails/vert-oven-lg_thumbnail.gif" border="0"/></a></li>     <li><a href="#?w=400" rel="gas-pulse" class="product"><img src="parts_by_man_ok_by_jon/vulcan/thumbnails/gaspulse_sm_thumbnail.gif" border="0"/></a></li>     </ul>      <div class="slider">     <div class="handle"></div>         </div>     </div>   </div> </body> </html> 

css:

.popup_block_parts { display: none;  background: transparent;  height:300px; padding: 20px; float: left; font-size: .95em; position: absolute; top: 520px; left:680px; z-index: 99998; }  #plc-operator-interface{ top:50px; position:absolute;  z-index:5; } #vert-oven{ top:50px; position:absolute;  z-index:5;} #gas-pulse{ top:50px; position:absolute;  z-index:5;}  #fullsize { position:relative;  width:25px;  height:238px;  top:5px;  left:5px;  padding:2px;  z-index:10; } 

<script type="text/javascript"> $(document).ready(function() {    $('a.product').click(function() {       var popid = $(this).attr('rel');        var popurl = $(this).attr('href');        $('.popup_block_parts').each(function(){ $(this).hide(); });        $('#' + popid).fadein('slow').css({ 'width': number( popwidth ) }).prepend();    }); }); </script> 

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