var thisobj = SHARETHIS.addEntry({
title:'Lapfix', url:'<? echo $siteurl ?>',
summary:'Here is a little more about the thingy I am sharing.'
}, {button:false, offsetLeft: 120, offsetTop: -280});

                                document.write('<span id="mysharebutton"><a href="javascript:void(0);"><img src="images/share_btn.jpg" border="0" width="125"  height="16" /></a></span>');
thisobj.attachButton(document.getElementById("mysharebutton"));