url = 'http://www.interserve.net/engine/show.img.php?crttype=txt&cid=693&pid=0&name=693_0_19251249858206800';


var tmp = new Date();
var suffix = tmp.getTime();
url += '&anticache='+suffix;

document.write("<script language=\'JavaScript\' type=\"text/JavaScript\" src=\""+url+"\"></script>");