function in_array(needle, haystack, argStrict)
{
  // http://kevin.vanzonneveld.net
  // +   original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
  // *     example 1: in_array('van', ['Kevin', 'van', 'Zonneveld']);
  // *     returns 1: true
  var found = false, key, strict = !!argStrict;

  for (key in haystack) {
      if ((strict && haystack[key] === needle) || (!strict && haystack[key] == needle)) {
          found = true;
          break;
      }
  }

  return found;
}


function formatCurrency(num)
{
  num = num.toString().replace(/\$|\,/g,'');
  
  if(isNaN(num))
    num = "0";
    
  sign = (num == (num = Math.abs(num)));
  num = Math.floor(num*100+0.50000000001);
  cents = num%100;
  num = Math.floor(num/100).toString();
  
  if(cents<10)
    cents = "0" + cents;
    
  for (var i = 0; i < Math.floor((num.length-(1+i))/3); i++)
    num = num.substring(0,num.length-(4*i+3))+','+num.substring(num.length-(4*i+3));
    
  return (((sign)?'':'-') + num + '.' + cents);
}