.pragma library

function stringToColor(str) {
    var hash = 0;
    for (var i = 0; i < str.length; i++) {
        hash = str.charCodeAt(i) + ((hash << 5) - hash);
    }
    var colour = '#';
    for (var j = 0; j < 3; j++) {
        var value = (hash >> (j * 8)) & 0xFF;
        colour += ('00' + value.toString(16)).substr(-2);
    }
    return colour;
}

function pushToStack(stack, page) {
    if(page && stack.currentItem !== page) {
        if(stack.depth === 1) {
            stack.replace(page)
        } else {
            stack.clear()
            stack.push(page)
        }
    }
}