With KoolAutoComplete, you can easily make a gmail-like autosuggest.
<?php
require $KoolControlsFolder."/KoolAutoComplete/koolautocomplete.php";
require $KoolControlsFolder."/KoolAjax/koolajax.php";
$kac = new KoolAutoComplete("kac");
$kac->scriptFolder = $KoolControlsFolder."/KoolAutoComplete";
$kac->width = "160px";
$kac->attachTo = "txtTo";
$kac->styleFolder="office2007";
$kac->itemTemplate = "{html}";
$kac->boxWidth = "400px";
function service($text)
{
$text = str_replace("\\\"","\"",$text);
$token = explode(",",$text);
$last_token = $token[sizeof($token)-1];
$last_token = trim($last_token);
$items = array();
$result = mysql_query("select firstName, lastName, email from employees where CONCAT(firstName,' ',lastName,' ', email) like '%$last_token%' order by email;");
while($row = mysql_fetch_assoc($result))
{
$text = '"'.$row["firstName"]." ".$row["lastName"].'"'."<".$row["email"].">";
$text_array = $token;
$text_array[sizeof($text_array)-1] = $text;
$text = join(",",$text_array);
$html = '"'.$row["firstName"]." ".$row["lastName"].'"'."[".$row["email"]."]";
$html = preg_replace("/".$last_token."/i","<b>$last_token</b>",$html);
$html = str_replace("[","<",$html);
$html = str_replace("]",">",$html);
$item = array("text"=>$text,"html"=>$html);
array_push($items,$item);
}
return $items;
}
$kac->serviceFunction = "service";
$koolajax->enableFunction("service");
?>
<form id="form1" method="post">
<?php echo $koolajax->Render();?>
<img src="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;"></textarea>
<?php echo $kac->Render();?>
</td>
</tr>
</table>
<div style="padding-top:10px;padding-left:30px;">
<i>*Note:</i> Use comma (,) to seperate the emails
</div>
</form>
KoolAutoComplete - Great PHP Ajax AutoCompleteTrialVersion 1.5.0.0 released on 04/16/2012