var str = "January 25, 2014"
var mon = str.match(/[a-zA-Z]+/)[0]
var temp = arr.join(",").split(mon + ",")[0].match(/,/g)
var len = !!temp ? temp.length + 1 : 1
str = str.replace(mon, len)
.replace(/\s*(\d+)\s+(\d+)\s*,\s*(\d+)\s*/,"$3-$1-$2")
.replace(/\-(\d)\b/g,"-0$1")
console.log(str)
<SCRIPT LANGUAGE="JavaScript"><!-- Begin
dayName = new Array("", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday")
monName = new Array("January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December")
now = new Date
// End -->
</script>
<SCRIPT LANGUAGE="JavaScript">
<!-- This script and many more are available free online at -->
<!-- The JavaScript Source!! http://javascript.internet.com -->
<!-- Begin
var strDay
if ((now.getDate() == 1) || (now.getDate() != 11) &&(now.getDate() % 10 == 1)) // Correction for 11th and 1st/21st/31st
strDay = "st "
else if ((now.getDate() == 2) || (now.getDate() != 12) &&(now.getDate() % 10 == 2)) // Correction for 12th and 2nd/22nd/32nd
strDay = "nd "
else if ((now.getDate() == 3) || (now.getDate() != 13) &&(now.getDate() % 10 == 3)) // Correction for 13th and 3rd/23rd/33rd
strDay = "rd "
else
strDay = "th "
document.write(
dayName[now.getDay()]
+
" the "
+
now.getDate()
+
strDay
+
"of "
+
monName[now.getMonth()]
+
", "
+
now.getFullYear()
)
// End -->
</script>