Xボックスにカーソルを合わせたときにショップxの色を変更したい、またはその逆をしたい.
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<html>
<head>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.js"></script>
<script>
$(document).ready(function(){
  $("#c1").hover(function(){
  $("[id='gp1']").attr("bgcolor","#FF0000");
  }, function(){
  $("[id='gp1']").attr("bgcolor","#FFFFFF");
  }
  );
    $("#c2").hover(function(){
  $("[id='gp2']").attr("bgcolor","#0000FF");
  }, function(){
  $("[id='gp2']").attr("bgcolor","#FFFFFF");
  }
  );
    $("#c3").hover(function(){
  $("[id='gp3']").attr("bgcolor","#FFFF00");
  }, function(){
  $("[id='gp3']").attr("bgcolor","#FFFFFF");
  }
  );
    $("#c4").hover(function(){
  $("[id='gp4']").attr("bgcolor","#00FF00");
  }, function(){
  $("[id='gp4']").attr("bgcolor","#FFFFFF");
  }
  );
      $('*[class^=s]').hover(function(){
      var group=$(this).attr("id");
      var classname=$(this).attr("class");
      var $jqname="$(\"[class=\'" + classname + "\']\")"
      alert(group);
      alert(classname);
      alert($jqname);
      var colour;
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        $jqname.attr("bgcolor","#FFFF00");
      }else if(group="gp2"){
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        $jqname.attr("bgcolor","#FFFF00");
      }else if(group="gp3"){
      colour="#FFFF00"
        $jqname.attr("bgcolor","#FFFF00");
      }else{
      colour="#00FF00"
        $jqname.attr("bgcolor","#FFFF00");
      }
  }, function(){
  $jqname.attr("bgcolor","#FFFFFF");
  }
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});
</script>
<meta http-equiv="Content-Type" content="text/html; charset=big5">
<title>Document</title>
<style type="text/css">
<!--
td {font-size: 24px; font-family: Arial, Helvetica, sans-serif; }
-->
</style>
</head>
<body>
<table width="565" height="126" border="1">
  <tr>
    <td id="gp1" class="s1">1</td>
    <td id="gp2" class="s2">2</td>
    <td id="gp4" class="s3">3</td>
    <td id="gp3" class="s4">4</td>
  </tr>
  <tr>
    <td id="gp4" class="s5">5</td>
    <td id="gp1" class="s6">6</td>
    <td id="gp2" class="s7">7</td>
    <td id="gp3" class="s8">8</td>
  </tr>
  <tr>
    <td id="gp3" class="s9">9</td>
    <td id="gp2" class="s10">10</td>
    <td id="gp4" class="s11">11</td>
    <td id="gp1" class="s12">12</td>
  </tr>
  <tr>
    <td id="gp3" class="s13">13</td>
    <td id="gp4" class="s14">14</td>
    <td id="gp2" class="s15">15</td>
    <td id="gp1" class="s16">16</td>
  </tr>
</table>
<p> </p>
<table width="260" height="64" border="1">
  <tr>
    <td width="119" height="29" bgcolor="#FF0000" id="c1">Category 1</td>
    <td width="125" bgcolor="#0000FF" id="c2">Category 2</td>
  </tr>
  <tr>
    <td height="27" bgcolor="#FFFF00" id="c3">Category 3</td>
    <td bgcolor="#00FF00" id="c4">Category 4</td>
  </tr>
</table>
<table width="500" height="175" border="1">
  <tr>
    <td id="gp1" class="s1">Shop1</td>
    <td id="gp2" class="s2">Shop2</td>
    <td id="gp4" class="s3">Shop3</td>
    <td id="gp3" class="s4">Shop4</td>
  </tr>
  <tr>
    <td id="gp4" class="s5">Shop5</td>
    <td id="gp1" class="s6">Shop6</td>
    <td id="gp2" class="s7">Shop7</td>
    <td id="gp3" class="s8">Shop8</td>
  </tr>
  <tr>
    <td id="gp3" class="s9">Shop9</td>
    <td id="gp2" class="s10">Shop10</td>
    <td id="gp4" class="s11">Shop11</td>
    <td id="gp1" class="s12">Shop12</td>
  </tr>
  <tr>
    <td id="gp3" class="s13">Shop13</td>
    <td id="gp4" class="s14">Shop14</td>
    <td id="gp2" class="s15">Shop15</td>
    <td id="gp1" class="s16">Shop16</td>
  </tr>
  <tr>
  </tr>
</table>
<p> </p>
</body>
</html>