// This next little bit of code tests whether the user accepts cookies.

//var isNN = (navigator.appName.indexOf("Netscape")!=-1);
//var isIE = (navigator.appName == 'Microsoft Internet Explorer');

if(isIE){
    var GRS_acceptsCookies = false;
    if(document.cookie == '') {
     document.cookie = 'GRS_acceptsCookies=yes'; // Try to set a cookie.
     if(document.cookie.indexOf(";", 'GRS_acceptsCookies=yes') != -1) {
          GRS_acceptsCookies = true; 
     }// If it succeeds, set variable
    }
    else { // there was already a cookie
     GRS_acceptsCookies = true;
    }

}
else{
    var GRS_acceptsCookies = true;
}




function GRS_setCookie (name, value, hours, path, domain, secure) {
    var not_NN2 = (navigator && navigator.appName && (navigator.appName == 'Netscape') && navigator.appVersion && (parseInt(navigator.appVersion) == 2))?false:true;
    if (!hours) hours = 4350;
    if(hours && not_NN2) { // NN2 cannot handle Dates, so skip this part
     if ( (typeof(hours) == 'string') && Date.parse(hours) ) { // already a Date string
          var numHours = hours;
     }
     else if (typeof(hours) == 'number') { // calculate Date from number of hours
          var numHours = (new Date((new Date()).getTime() + hours*3600000)).toGMTString();
     }
    }
    document.cookie = name + '=' + escape(value) + ((numHours)?(';expires=' + numHours):'') + ((path)?';path=' + path:'') + ((domain)?';domain=' + domain:'') + ((secure && (secure == true))?'; secure':''); // Set the cookie, adding any parameters that were specified.

} 


function GRS_readCookie(name) {
    if(document.cookie == '') { // there's no cookie, so go no further
     return false; 
    } 
    else { // there is a cookie
     var firstChar, lastChar;
     var theBigCookie = document.cookie;
     firstChar = theBigCookie.indexOf(name); // find the start of 'name'
     var NN2Hack = firstChar + name.length;
     if((firstChar != -1) && (theBigCookie.charAt(NN2Hack) == '=')) { // if you found the cookie
          firstChar += name.length + 1; // skip 'name' and '='
          lastChar = theBigCookie.indexOf(';', firstChar); // Find the end of the value string (i.e. the next ';').
          if(lastChar == -1) lastChar = theBigCookie.length;
          return unescape(theBigCookie.substring(firstChar, lastChar));
     }
     else { // If there was no cookie of that name, return false.
     return false;
     }
    } 
} // GRS_readCookie


function GRS_killCookie(name, path, domain) {
    var theValue = GRS_readCookie(name); // We need the value to kill the cookie
    if(theValue) {
     document.cookie = name + '=' + theValue + '; expires=Fri, 13-Apr-1970 00:00:00 GMT' + ((path)?';path=' + path:'') + ((domain)?';domain=' + domain:''); // set an already-expired cookie
    }
} // GRS_killCookie