Need a simple HTML code help?

I do have html script function what I need is when " swipeDirection == 'left' " need to load a page called "page2.html".Thanks in advance :)

processingRoutine() {
var swipedElement = document.getElementById(triggerElementID);
if ( swipeDirection == 'left' ) {
// REPLACE WITH YOUR ROUTINES
swipedElement.style.backgroundColor = 'orange';
} else if ( swipeDirection == 'right' ) {
// REPLACE WITH YOUR ROUTINES
swipedElement.style.backgroundColor = 'green';
} else if ( swipeDirection == 'up' ) {
// REPLACE WITH YOUR ROUTINES
swipedElement.style.backgroundColor = 'maroon';
} else if ( swipeDirection == 'down' ) {
// REPLACE WITH YOUR ROUTINES
swipedElement.style.backgroundColor = 'purple';
}
}