// JavaScript Document
var greyscale=false
function toggleGreyScale(elem){
   greyscale = !greyscale;
   elem.style.filter = "Gray";
   elem.filters["Gray"].enabled = greyscale;
}

var fliph=false
function toggleFlipScale(elem){
   fliph = !fliph;
   elem.style.filter = "fliph";
   elem.filters["fliph"].enabled = fliph;
}