How to open a modal window when clicked on link present in each row of a table

How to open a modal window when clicked on link present in each row of a table

I am using jquery  to opena modal window. To start up with I am using same code as present in jquery demo for form modal window.
Button which triggers modal window is present in a column of a table and each row has this button.
My problem is button present in first row only works and all other button in the table does not work. 
Here is related code:
<head>
<link rel="stylesheet" href="http://code.jquery.com/ui/1.10.1/themes/base/jquery-ui.css" />
  <script src="http://code.jquery.com/jquery-1.9.1.js"></script>
  <script src="http://code.jquery.com/ui/1.10.1/jquery-ui.js"></script>
  <script src="js/jquery.js"></script>
</head>

<table>
<?php>
echo "<tr>\n";
echo "<td class='linkcolummn'><input type='button' value='Dedicate' id='create-user'/></td>";
echo "</tr>\n";
<?>

Could some one please help