function isBlank(s) {
   for (var i = 0; i < s.length; i++) {
      var c = s.charAt(i);
      if ((c != ' ') && (c != '\n') && (c != '\t')) {
         return false;
      }
   }
      return true;
}

function verify(f,msg) {
   for (var i = 0; i < f.elements.length; i++) {
      var e = f.elements[i];
      if ( (e.type == "text") || (e.type == "password") ) {
         if ((e.value == null) || (e.value == "") || isBlank(e.value)) {
            alert(msg);
            return false;
         }
      }
   }
   return true;
}

function IsNumeric(sText) {
   var ValidChars = "0123456789.";
   var IsNumber=true;
   var Char;

   for (i = 0; i < sText.length && IsNumber == true; i++) 
      { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
         {
         IsNumber = false;
         }
      }
   return IsNumber;
}
   
function verifynum(numVal,msg) {
	if (!IsNumeric(numVal)) {
		alert(msg);
		return false;
	}
	else {
		return true
	}
}

function verifypw(pw1,pw2) {
   if (pw1 != pw2) {
      alert('You have entered two different passwords.\n' +
            'Make sure you type the password exactly the same ' +
            'in both password fields.');
      return false;
   }
   return true;
}

function verifydel(msg) {
   return confirm('Are you SURE you want to PERMANENTLY delete ' + msg + '?');
}