var agt=navigator.userAgent.toLowerCase();
this.major = parseInt(navigator.appVersion);
this.ie     = ((agt.indexOf("msie") != -1));
var isIEVer6    = (this.ie && (this.major == 4) && (agt.indexOf("msie 6.")!=-1) );
if (isIEVer6) document.write("<style type=text/css> .content {float: left; width: 64em; margin-top: 0px; overflow: hidden;}</style>");
else document.write("<style type=text/css> .content {float: left; width: 64em; margin-top: 0px;}</style>");