function myCountUp(myYear,myMonth,myDay){
   myNow   = new Date();
   myRunDate = new Date( myYear , myMonth-1 , myDay );
   myMsec = myNow.getTime()-myRunDate.getTime();
   myDayCount = Math.floor(myMsec / (1000*60*60*24));
   document.write(myDayCount+1);
}
myCountUp(1992,3,17);