Slide 18

/* This functions takes a cookie date string and reformats is so it
Can be compared to a system date it requires the id and the
date from the target cookie */
function newCheck(grafElement,dtString) {
// Strip the first 4 characters from the date in decimal and put them in the variable yyyy
var yyyy = parseInt(dtString.substring(0,4),10);
// Strip the 5th - 6th characters from the date in decimal and put them in the variable mm
var mm = parseInt(dtString.substring(4,6),10);
// Strip the 7th - 8th characters from the date in decimal and put them in the variable dd
var dd = parseInt(dtString.substring(6,8),10);
/* create a new variable called lastChgd and use the parts from
dtString to build it in a format that matches lastVisit */
var lastChgd = new Date(yyyy,mm-1,dd);
// If the lastChaged date was after the lastVisit date ...
if (lastChgd.getTime() > lastVisit.getTime()) {
// Change the classname of the object to newImg
grafElement.className += " newImg";
// The newImg class will result in the new graphic being displayed
}
}
}

dtSrting = 20181102

yyyy = 2018 Decimal

mm = 11 Decimal

dd = 02 Decimal

LastChgd=2018,10,02

Remember the month in most programming languages starts at index 0 (0-11)