function getCookieDeleteDate() {
    var exp = new Date();
    var expDate = exp.getTime() - (7 * 24 * 60 * 60 * 1000);
    exp.setTime(expDate);
    return exp.toGMTString();
 }

function getCookie(name, defval) {
    if(document.cookie)    {
       var result = null;
       var myCookie = ' '+document.cookie+';';
       var searchName = ' ' + name + '=';
       var startOfCookie = myCookie.indexOf(searchName);
       var endOfCookie;
       if (startOfCookie != -1)       {
         startOfCookie += searchName.length;
         endOfCookie = myCookie.indexOf(';', startOfCookie);
         result = unescape(myCookie.substring(startOfCookie, endOfCookie));
       }
       if (result != null)       {
          return result;
       }       else       {
          return defval;
       }
    }    return 0; 
}   

function setCookie(path, name, val, exp) {
    if((exp) && (path))    {
            document.cookie=name + "=" + escape(val) + "; expires=" + exp + "; path=" + path;
    }    else    if(exp)    {
            document.cookie=name + "=" + escape(val) + "; expires=" + exp;
    }    else    if(path)    {
           document.cookie=name + "=" + escape(val) + "; path=" + path;
    }    else   {
          document.cookie=name + "=" + escape(val);
   } 
}   

function clearCookieEntry(path, name) {
    var deleteDate = new Date();
    deleteDate = getCookieDeleteDate();
    setCookie(path, name, '', deleteDate);
}   

function getCookieDefaultExpire() {
    var exp = new Date();
    var days;
    if(document.forms[0].CookieExpire)    {
          days = document.forms[0].CookieExpire.value;
    }
    var expDate = exp.getTime() + (Number(days) * 24 * 60 * 60 * 1000);
    exp.setTime(expDate);
    return exp.toGMTString();
}   

function getCookieFormFields() {
    var formfields = new Array();
    if(document.forms[0].CookieFields)    {
         formfields = document.forms[0].CookieFields.value.split(",");
    }
    return formfields; 
}   

function getCookieFromFields() {
    if(document.cookie)    {
       var fields = new Array();
       var count;
       var nofields;
       fields = getCookieFormFields();
       nofields = fields.length;
       for (count=0; count<nofields; count++)       {
          document.forms[0].elements[fields[count].toString()].value = getCookie(fields[count], "No values found");
       }
       return 0;
    } 
}   

function setCookieFromFields() {
    var fields = new Array();
    var count;
    var index;
    var nofields;
    fields = getCookieFormFields();
    nofields = fields.length;
    for (count=0; count<nofields; count++)    {
       setCookie('/', fields[count], document.forms[0].elements[fields[count].toString()].value, getCookieDefaultExpire());
    } 
}   

function clearCookie() {
    var deleteDate = new Date();
    var formfields = new Array();
    var nofields;
    var count;
    deleteDate = getCookieDeleteDate();
    formfields = document.forms[0].elements[0].value.split(",");
    nofields = formfields.length;
    for(count=0; count<nofields; count++)    {
       setCookie('/', formfields[count], '', deleteDate);
    } 
}