How can I make a simple mouseon popup tooltip with jQuery?

I want to show related tooltip for listed info, related tooltip and info are in same cell in table. I don't want use a plugin for this.

When onmouseover to any link, related tooltip displayed and if onmouseover to tooltip box, tooltip box will not close. When onmouseout any area on page except tooltip box or related link, tooltip box will close.

I want to make a simple tooltip as like this plugin. Is there a simple way for this without using a plugin?

HTML

<table width="600">
<tr>
    <td>                                  
        <a href="#" class="link">Link-1</a>
        <div class="tooltip">(1) Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s</div>
    </td>
</tr>
<tr>
    <td>                        
        <a href="#" class="link">Link-2</a>
        <div class="tooltip">(2) when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged</div>
    </td>
</tr>
<tr>
    <td>                        
        <a href="#" class="link">Link-3</a>
        <div class="tooltip">(3) It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop</div>
    </td>
</tr>
<tr>
    <td>                        
        <a href="#" class="link">Link-4</a>
        <div class="tooltip">(4) publishing software like Aldus PageMaker including versions of Lorem Ipsum.</div>
    </td>
</tr>
</table>

CSS

table td {
    position:relative;
}
.tooltip {
    width:400px;
    height:300px;
    padding:20px;
    border:1px solid #ccc;
    box-shadow: 0 0 3px rgba(0,0,0,.3);
    -webkit-box-shadow: 0 0 3px rgba(0,0,0,.3);
    border-radius:3px;
    -webkit-border-radius:3px;
    position:absolute;
    top:5px;
    left:50px;
    display:none;
}

jQuery

$(function(){
    $('.link').hover(
        function(){
            $(this).next().show();
        },
        function(){
            $(this).next().hide();   
        }
    )   
})

JSFiddle

http://jsfiddle.net/96j44/

An easy or simple way to do this, without a jQuery plugin, is by adding some simple rules to your CSS, and then no Javascript or jQuery is necessary. I don't really understand your need for the table though, and the CSS would be simpler if your were not using one.

table td {
  position: relative;
}

.tooltip {
  width: 400px;
  height: 300px;
  padding: 20px;
  border: 1px solid #ccc;
  box-shadow: 0 0 3px rgba(0, 0, 0, .3);
  -webkit-box-shadow: 0 0 3px rgba(0, 0, 0, .3);
  border-radius: 3px;
  -webkit-border-radius: 3px;
  position: absolute;
  top: 5px;
  left: 50px;
  display: none;
}

.tooltip {
  z-index: 100;
}

.link {
  display: block;
  width: 9%;
}

.link:hover+.tooltip {
  display: block;
}

.tooltip:hover {
  display: block;
}

<table width="600">
  <tr>
    <td>
      <a href="#" class="link">Link-1</a>
      <div class="tooltip">(1) Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s</div>
    </td>
  </tr>
  <tr>
    <td>
      <a href="#" class="link">Link-2</a>
      <div class="tooltip">(2) when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged</div>
    </td>
  </tr>
  <tr>
    <td>
      <a href="#" class="link">Link-3</a>
      <div class="tooltip">(3) It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop</div>
    </td>
  </tr>
  <tr>
    <td>
      <a href="#" class="link">Link-4</a>
      <div class="tooltip">(4) publishing software like Aldus PageMaker including versions of Lorem Ipsum.</div>
    </td>
  </tr>
</table>