HTML Practice registering users

<html>   <head>     <script>  function aa() {var s;           S=reg.user.value;             Alert ("user name is"+s);             }  function aa2(t) {var p1,p2;            Alert (t);            P1=reg.pass1.value;            P2=reg.pass2.value; if            (P1!=P2) alert ("two times password inconsistency"); }                                   </script>   </head>   <body>     <H1 align="center">Registered</H1>     <table Align="center" Border="2" width= " the" bgcolor="Pink">      <form name="Reg">        <tr><TD>User name</td><TD><input type="text" name="user"></td></tr>        <tr><TD>Password</td><TD><input type="password" name="Pass1"></td></tr>        <tr><TD>Confirm Password</td><TD><input type="password" name="Pass2"onblur="Aa2 ( This) ">  </td></tr>         <tr><TD>Gender</td><TD><input type="Radio" name="Sex" value="1" >Man<input type="Radio" name="Sex" value=  "2" checked>Woman</td></tr>          <tr><TD>Hobby</td><TD><input type="checkbox" name= "hb1" value=" FT ">Football<input type="checkbox" name="HB2" value ="MS">Music<input type="checkbox" name="HB3" value="Tor" />Tourism</td></tr>          <tr><TD colspan="2"><input type="file" name="F1" /></td></tr>          <tr><TD>College</td><TD>                          <Select name="s">                            <option value="1"selected>  School of Information</option>                           <option value="2">School of Management</option>                            <option value="3">College of Mechanical and electrical</option>                          </Select>       <tr><TD colspan="2" align= "Center"><input type="button" value="Commit"onclick= "AA ()" />   <input type="Reset" value="reset" /></td></tr>      </form>   </body></html>

HTML Practice registering users