When parsing dates in JavaScript it should be noted that Date.Parse() doesn't recognise strings with dates in the form dd-mmm-yyyy. One workaround is to first replace the '-' in the string with a space as follows:

// Replace '-' with spaces. Note that /-/g ensures that ALL '-' in the string are replaced.

strToParse = strToParse.replace(/-/g,' ');

// Display the parsed date.

alert(Date.Parse(strToParse);