if(navigator.appName=="Microsoft Internet Explorer")
{
version=0
if (navigator.appVersion.indexOf("MSIE")!=-1){
temp=navigator.appVersion.split("MSIE")
version=parseFloat(temp[1])
}

if (version>=7) //NON IE browser will return 0
	document.write('<'+'link rel="stylesheet" href="stylesheets/ie7.css" />');
else
{
	document.write('<'+'link rel="stylesheet" href="stylesheets/ie6.css" />');
}

}
else
{
	document.write('<'+'link rel="stylesheet" href="stylesheets/ff.css" />');
}