Mini Shell

// Avoid `console` errors in browsers that lack a console.
(function() {
    var method;
    var noop = function noop() {};
    var methods = [
        'assert', 'clear', 'count', 'debug', 'dir', 'dirxml', 'error',
        'exception', 'group', 'groupCollapsed', 'groupEnd', 'info', 'log',
        'markTimeline', 'profile', 'profileEnd', 'table', 'time', 'timeEnd',
        'timeStamp', 'trace', 'warn'
    ];
    var length = methods.length;
    var console = (window.console = window.console || {});

    while (length--) {
        method = methods[length];

        // Only stub undefined methods.
        if (!console[method]) {
            console[method] = noop;
        }
    }
}());

// Place any jQuery/helper plugins in here.

function getCaretPosition (ctrl) {
	var caretPos = 0;
	if (document.selection) {
		// IE Support
		ctrl.focus ();
		var sel = document.selection.createRange ();
		sel.moveStart ('character', -ctrl.value.length);
		caretPos = sel.text.length;
	} else if (ctrl.selectionStart || ctrl.selectionStart == '0') {
		// Firefox support
		caretPos = ctrl.selectionStart;
	}
	return caretPos;
}
function setCaretPosition(ctrl, pos) {
	if (ctrl.setSelectionRange) {
		ctrl.focus();
		ctrl.setSelectionRange(pos,pos);
	} else if (ctrl.createTextRange) {
		var range = ctrl.createTextRange();
		range.collapse(true);
		range.moveEnd('character', pos);
		range.moveStart('character', pos);
		range.select();
	}
}