KoolTabs supports creating by XML with the use of KoolScripting. You may have a look at code section for more details.
<?php
require $KoolControlsFolder."/KoolTabs/kooltabs.php";
?>
<form id="form1" method="post">
<?php echo KoolScripting::Start();?>
<kooltabs id="kts" styleFolder="silver" scriptFolder="<?php echo $KoolControlsFolder."/KoolTabs"; ?>">
<tab id="home" text="Home" selected="true"/>
<tab id="products" text="Products" />
<tab id="services" text="Services" />
<tab id="company" text="Company" />
<tab id="contactus" text="Contact us" />
</kooltabs>
<?php echo KoolScripting::End();?>
</form>