使用javascript判断浏览器版本类型

var browser = navigator.appName

var b_version = navigator.appVersion

var version = b_version.split(";");

var trim_Version = version[1].replace(/[ ]/g, "");

if (browser == "Microsoft Internet Explorer" && trim_Version == "MSIE7.0") {

obj.style.minHeight = screen.height - 145;

}

else if (browser == "Microsoft Internet Explorer" && trim_Version == "MSIE6.0") {

obj.style.height = screen.height - 145;

}