function roundNumber(num, dec) {
	var result = Math.round(num*Math.pow(10,dec))/Math.pow(10,dec);
	return result;
}

function r2(n) {

  ans = n * 1000
  ans = Math.round(ans /10) + ""
  while (ans.length < 3) {ans = "0" + ans}
  len = ans.length
  ans = ans.substring(0,len-2) + "." + ans.substring(len-2,len)
  return ans
} 

function str_replace(search, replace, subject) {
    var temp = subject.split(search);
    return temp.join(replace);
}

function cachableTimeStr()
{
	var dateObj	  =	new Date();
	dateObj = new Date();
	var timeStr = dateObj.getTime();
	dateObj = null;
	return timeStr;
}