validation for particular fields like input name="",textarea,select name="".
<form method="post" id="myform" name="myform">
<tr><td width="170"><div align="left">Company Name<span style="color:#F00;">*</span> :</div></td><td width="317"> <input type="text" name="companyname" placeholder="Company Name" value="<?php echo ucwords(strtolower(mysql_real_escape_string($_POST['companyname']))); ?>"/></td></tr>
<tr><td><div align="left">Contact Person Name<span style="color:#F00;">*</span> :</div></td><td> <input type="text" name="conactperson" placeholder="Contact Person Name" value="<?php echo ucwords(strtolower(mysql_real_escape_string($_POST['conactperson']))); ?>"/></td>
</tr>
</form>
company name is mandatory but if i go to next fields i want to display one message near that companyame text box. am searching for this still not getting.if anyone knows about this validation please help me.