With KoolAutoComplete, you can easily make a gmail-like autosuggest.
span style="color: #ff0000;">"/KoolAutoComplete/koolautocomplete.php""/KoolAjax/koolajax.php""kac");
$kac->scriptFolder = $KoolControlsFolder."/KoolAutoComplete";
$kac->width = "160px";
$kac->attachTo = "txtTo";
$kac->styleFolder="office2007";
$kac->itemTemplate = "{html}";
$kac->boxWidth = "400px""\\\"","\""",""select firstName, lastName, email from employees where CONCAT(firstName,' ',lastName,' ', email) like '%$last_token%' order by email;"'"'.$row["firstName"]." ".$row["lastName"].'"'."<".$row["email"].">"","'"'.$row["firstName"]." ".$row["lastName"].'"'."[".$row["email"]."]""/""/i","<b>$last_token</b>""[","<""]",">""text"=>$text,"html""service""service""form1" method="post""gmail.gif" alt="Gmail" />
<table>
<tr>
<td valign="top"><b>To:</b></td>
<td>
<textarea id="txtTo" style="width:620px;height:60px;font-family:Arial;""padding-top:10px;padding-left:30px;"
KoolAutoComplete - Great PHP Ajax AutoCompleteTrialVersion 1.3.0.2 released on 12/17/2009