function TellNewsToFriendBtnClick()
 {
     var url = encodeURIComponent(window.location);
     var letter = getCookie("NewsLetter");
     letter += " ";
     letter += url;
     window.location =  "mailto:?subject=Recommend an interesting news for you&body=" + letter;
 }
 function TellProductToFriendBtnClick()
 {
     var url = encodeURIComponent(window.location);
     var letter = getCookie("ProductLetter");
     letter += " ";
     letter += url;
     window.location =  "mailto:?subject=Recommend a Product for you&body=" + letter;
 }  
 
 
 
function getCookie(c_name)
{
    if (document.cookie.length>0)
      {
      c_start=document.cookie.indexOf(c_name + "=");
      if (c_start!=-1)
        {
        c_start=c_start + c_name.length+1;
        c_end=document.cookie.indexOf(";",c_start);
        if (c_end==-1) c_end=document.cookie.length;
        return unescape(document.cookie.substring(c_start,c_end));
        }
      }
    return "";
}

function setCookie(c_name,value,expiredays)
{
    var exdate=new Date();
    exdate.setDate(exdate.getDate()+expiredays);
    document.cookie=c_name+ "=" +escape(value)+
    ((expiredays==null) ? "" : ";expires="+exdate.toGMTString());
}

function delCookie(c_name)
{
     var exp = new Date();
     exp.setTime (exp.getTime() - 1);
     var s = this.getCookie(c_name);
     document.cookie = c_name +"="+ s +";expires="+  exp.toGMTString();
}