/**********************         Internet Explorer       *********************/
if (/MSIE (\d+\.\d+);/.test(navigator.userAgent))
{ //test for MSIE x.x;
 var ieversion=new Number(RegExp.$1) // capture x.x portion and store as a number
 
 if (ieversion==6)
 {
    //document.write("You're using IE8 or above")
    document.write('<'+'link rel="stylesheet" href="css/buytheearth_IE.css" />');
 }
 else if (ieversion==7)
 {
    document.write('<'+'link rel="stylesheet" href="css/buytheearth_ie6.css" />');
 }
}
//else
//   document.write('<'+'link rel="stylesheet" href="css/buytheearth.css" />');
 
/**********************        End of Internet Explorer       *********************/ 
  

/**********************             Firefox          *********************/   
if (/Firefox[\/\s](\d+\.\d+)/.test(navigator.userAgent))            ////test for Firefox/x.x or Firefox x.x (ignoring remaining digits);
{ 
    var ffversion=new Number(RegExp.$1) // capture x.x portion and store as a number
    if (ffversion>=3)
       // document.write("You're using FF 3.x or above")
       document.write('<'+'link rel="stylesheet" href="css/buytheearth.css" />');
    else if (ffversion>=2)
        //document.write("You're using FF 2.x")
        document.write('<'+'link rel="stylesheet" href="css/buytheearth.css" />');
    else if (ffversion>=1)
        //document.write("You're using FF 1.x")
        document.write('<'+'link rel="stylesheet" href="css/buytheearth.css" />');
        else
         document.write('<'+'link rel="stylesheet" href="css/buytheearth.css" />');
}
//else
// document.write("n/a")
/**********************            End of Firefox          *********************/ 

/**********************             Opera          *********************/
if (/Opera[\/\s](\d+\.\d+)/.test(navigator.userAgent))
{ //test for Opera/x.x or Opera x.x (ignoring remaining decimal places);
    var oprversion=new Number(RegExp.$1) // capture x.x portion and store as a number
    if (oprversion>=10)
        //document.write("You're using Opera 10.x or above")
        document.write('<'+'link rel="stylesheet" href="css/buytheearth_Opera9.css" />');
    else if (oprversion>=9)
       // document.write("You're using Opera 9.x")
       document.write('<'+'link rel="stylesheet" href="css/buytheearth_Opera9.css" />');
    else if (oprversion>=8)
        //document.write("You're using Opera 8.x")
        document.write('<'+'link rel="stylesheet" href="css/buytheearth_Opera9.css" />');
    else if (oprversion>=7)
        //document.write("You're using Opera 7.x")
        document.write('<'+'link rel="stylesheet" href="css/buytheearth_Opera9.css" />');
    else
        //document.write("n/a")
        document.write('<'+'link rel="stylesheet" href="css/buytheearth_Opera9.css" />');
}
//else
// document.write("n/a")
 
/**********************            End of Opera          *********************/

/**********************            Safari          *********************/
if (/Safari[\/\s](\d+\.\d+)/.test(navigator.userAgent))
{ //test for Opera/x.x or Opera x.x (ignoring remaining decimal places);
    var oprversion=new Number(RegExp.$1) // capture x.x portion and store as a number
    if (oprversion>=10)
        //document.write("You're using Opera 10.x or above")
        document.write('<'+'link rel="stylesheet" href="css/buytheearth_Safari.css" />');
    else if (oprversion>=9)
       // document.write("You're using Opera 9.x")
       document.write('<'+'link rel="stylesheet" href="css/buytheearth_Safari.css" />');
    else if (oprversion>=8)
        //document.write("You're using Opera 8.x")
        document.write('<'+'link rel="stylesheet" href="css/buytheearth_Safari.css" />');
    else if (oprversion>=7)
        //document.write("You're using Opera 7.x")
        document.write('<'+'link rel="stylesheet" href="css/buytheearth_Safari.css" />');
    else
        //document.write("n/a")
        document.write('<'+'link rel="stylesheet" href="css/buytheearth_Safari.css" />');
}

/**********************            End of Safari          *********************/