It's a JavaScript code wich has to be added just before the </body> tag, on the "thank you" page, on multiple forms wich i made.
<!-- Google Code for Purchase Conversion Page -->
<script language="JavaScript" type="text/javascript">
<!--
var google_conversion_id = 1234567890;
var google_conversion_language = "en_US";
var google_conversion_format = "1";
var google_conversion_color = "666666";
var google_conversion_label = "Purchase";
//-->
if (<? echo $totalValue ?>) {
var google_conversion_value = <? echo $totalValue ?>
}
</script>
<script language="JavaScript"
src="http://www.googleadservices.com/pagead/conversion.js">
</script>
<noscript>
<img height=1 width=1 border=0
src="http://www.googleadservices.com/pagead/conversion/1234567890/?value=<? echo
$totalValue ?>&label=Purchase&script=0">
</noscript>
Who knows where i should place this code on a Form?