//Set the two dates
var today=new Date()
var start=new Date(1993, 5, 30) //Month is 0-11 in JavaScript

experience = today.getFullYear() - start.getFullYear()

if (today.getMonth()==start.getMonth() && today.getDate()>start.getMonth())
	//if anniversary hasn't passed, subtract a year
	experience -= 1
	
document.write(experience)