Img_off = "bookoff_06.gif";
Img_on = "bookon_06.gif";

Lien = "/images/booknow/";



document.write('<a href="#" onmouseout="MM_swapImgRestore()" onClick="MM_openBrWindow(\'formu/formulaire.php\',\'resa\',\'width=480,height=510\')" onmouseover="MM_swapImage(\'btn_formu\',\'\',\''+Lien+Img_on+'\',1)">');
document.write('<img src="'+Lien+Img_off+'" name="btn_formu" width="166" height="27" border="0" id="btn_formu" />');
document.write('</a>');