function getDateDiff(date1, date2)
{

var day = 1000*60*60*24;
var hour = 1000*60*60;
var min = 1000*60;
var sec = 1000;

var date_diff = date2 - date1;

var ret = Math.floor(date_diff / day) + " days, " +
	  Math.floor((date_diff % day) / hour) + " hours, " +
	  Math.floor(date_diff % hour / min) + " mins, " +
	  Math.floor(date_diff % min / sec) + " secs";

return(ret);
}