function isCreditCard(textObj) {
 /*
  *  This function validates a credit card entry.
  *  If the checksum is ok, the function returns true.
  */
   var ccNum;
   var odd = 1;
   var even = 2;
   var calcCard = 0;
   var calcs = 0;
   var ccNum2 = "";
   var aChar = '';
   var cc;
   var r;

   ccNum = textObj;
   for(var i = 0; i != ccNum.length; i++) {
      aChar = ccNum.substring(i,i+1);
      if(aChar == '-') {
         continue;
      }
      ccNum2 = ccNum2 + aChar;
   }

   cc = parseInt(ccNum2);
   if(cc == 0) {
      return false;
   }
   r = ccNum.length / 2;
   if(ccNum.length - (parseInt(r)*2) == 0) {
      odd = 2;
      even = 1;
   }

   for(var x = ccNum.length - 1; x > 0; x--) {
      r = x / 2;
      if(r < 1) {
         r++;
      }
      if(x - (parseInt(r) * 2) != 0) {
         calcs = (parseInt(ccNum.charAt(x - 1))) * odd;
      } else {
         calcs = (parseInt(ccNum.charAt(x - 1))) * even;
      }
      if(calcs >= 10) {
         calcs = calcs - 10 + 1;
      }
      calcCard = calcCard + calcs;
   }

   calcs = 10 - (calcCard % 10);
   if(calcs == 10) {
      calcs = 0;
   }

   if(calcs == (parseInt(ccNum.charAt(ccNum.length - 1)))) {
      return true;
   } else {
      return false;
   }
}
function val() {
    if ((document.getElementById("criteria").value == "") || (document.getElementById("criteria").value == "Search")) {
        return false;
    } else {
        return true;
    }
}
function createCookie(name, value, days) {
    if (days) {
        var date = new Date();
        date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
        var expires = "; expires=" + date.toGMTString();
    } else {
        var expires = "";
    }
    document.cookie = name + "=" + value + expires + "; path=/";
}
function readCookie(name){
    var nameEQ = name + "=";
    var ca = document.cookie.split(';');
    for (var i = 0; i < ca.length; i++) {
        var c = ca[i];
        while (c.charAt(0) == ' ') c = c.substring(1, c.length);
        if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length, c.length);
    }
    return 0;
}
function eraseCookie(name){
    createCookie(name, "", -1);
}