This is in html file .in else section I want to call a \[code\]show-form();\[/code\] function which is in a \[code\]example.php\[/code\] page also what's the complete syntax for \[code\]$.post();\[/code\]\[code\]<script type="text/javascript">function nis(id){ $(id).show("slow").delay(4000).hide("slow"); } $(function() { setAutoComplete("searchField", "results", "autocomplete.php?part="); $('form[name=frm]').submit(function(event) { if($("#searchField").val().length===0) { nis('.divmsg'); return false; } else { $.post("example.php", function() {}); } }); }); </script>\[/code\]This is in \[code\]example.php\[/code\] .. which is for give you a declaration for any word you write it in searchField \[code\] <?php if(isset($_GET['act'])) { $do=$_GET['act']; switch($do) { case 'form': show_form();break; case 'sm' : submited();break; default : show_form; break; } } else { show_form(); } function show_form() { echo'<div class="divmsg"> Wronge input :: </div>'; echo' <form name="frm" method="post" action="index.php?act=sm"> '; echo'<p class="textplz">Tybe a Definition you want ?!'; echo'<p id="auto" >'; echo'Word : <input id="searchField" type="text" name="searchField" /> <input id="for-submitbutton" type="submit" name="sbm" value="http://stackoverflow.com/questions/12745573/Definition" /> '; echo' </p> </p> </form>'; } function submited() { require("dbconn.inc"); $word=$_POST['searchField']; $sql="select * from definition where word like '".$word."'"; $result=mysql_query($sql,$con); if(@mysql_num_rows($result)!=0) { while($rows=mysql_fetch_array($result)) { $vie=$rows["declation"]; } echo(' <br /> <br /> <form name="frm" method="post" action="index.php?act=sm"> <p id="auto" > Word : <input id="searchField" type="text" name="searchField" /> <input id="for-submitbutton" type="submit" name="sbm" value="http://stackoverflow.com/questions/12745573/Definition" /> </p> </form> '); echo('<div class="answer">'); print $word ; echo('<br><p id="dev">'); print $vie; echo ("</h4><br></p></div>"); } } ?>\[/code\]