var capslock = {
    init: function() {
        if (!document.getElementsByTagName) {
            return;
        }
        // Find all password fields in the page, and set a keypress event on them
        var inps = document.getElementsByTagName("input");
        for (var i = 0, l = inps.length; i < l; i++) {
            if (inps[i].type == "password") {
                capslock.addEvent(inps[i], "keypress", capslock.keypress);
            }
        }
    },
    addEvent: function(obj, evt, fn) {
        if (document.addEventListener) {
            capslock.addEvent = function(obj, evt, fn) {
                obj.addEventListener(evt, fn, false);
            };
            capslock.addEvent(obj, evt, fn);
        } else if (document.attachEvent) {
            capslock.addEvent = function(obj, evt, fn) {
                obj.attachEvent('on' + evt, fn);
            };
            capslock.addEvent(obj, evt, fn);
        } else {
            // no support for addEventListener *or* attachEvent, so quietly exit
        }
    },
    keypress: function(e) {
        var ev = e ? e : window.event;
        if (!ev) {
            return;
        }
        var targ = ev.target ? ev.target : ev.srcElement;
        // get key pressed
        var which = -1;
        if (ev.which) {
            which = ev.which;
        } else if (ev.keyCode) {
            which = ev.keyCode;
        }
        // get shift status
        var shift_status = false;
        if (ev.shiftKey) {
            shift_status = ev.shiftKey;
        } else if (ev.modifiers) {
            shift_status = !!(ev.modifiers & 4);
        }
        if (((which >= 65 && which <= 90) && !shift_status) ||
        ((which >= 97 && which <= 122) && shift_status)) {
            // uppercase, no shift key
            capslock.show_warning(targ);
        } else {
            capslock.hide_warning(targ);
        }
    },

    show_warning: function(targ) {
        var CapsLockWarning = document.getElementById('CapsLockWarning');
        CapsLockWarning.style.visibility = 'visible';
    },
    hide_warning: function(targ) {
        var CapsLockWarning = document.getElementById('CapsLockWarning');
        CapsLockWarning.style.visibility = 'hidden';
    }
};

(function(i) {
    var u = navigator.userAgent; var e = /*@cc_on!@*/false; var st =
setTimeout; if (/webkit/i.test(u)) {
        st(function() {
            var dr = document.readyState;
            if (dr == "loaded" || dr == "complete") { i() } else { st(arguments.callee, 10); } 
        }, 10);
    }
    else if ((/mozilla/i.test(u) && !/(compati)/.test(u)) || (/opera/i.test(u))) {
        document.addEventListener("DOMContentLoaded", i, false);
    } else if (e) {
        (
function() {
    var t = document.createElement('doc:rdy'); try {
        t.doScroll('left');
        i(); t = null;
    } catch (e) { st(arguments.callee, 0); } 
})();
    } else { window.onload = i; } 
})(capslock.init);