var b_version=navigator.appVersion;
var Browser = new RegExp("MSIE 6.0");
var browserIE6=Browser.test(b_version);
if (browserIE6)
{
document.write('<div id="ie6warning"><span>Your are currently using Internet Explorer 6, Some features may not work. <a href="http://www.microsoft.com/windows/internet-explorer/default.aspx" target="_blank" title="Internet Explorer 9">Click here </a> to upgrade your browser for better user experience.<br/></span><div class="ie_close"><a href="javascript:hidewarning(ie6warning)" onmouseover="window.status=\'\';return true">Close x</a></div>')

}