function shuffleArray(myArray){
	var i = myArray.length;
	if (i == 0) return false;
	while (--i){
		var j = Math.floor( Math.random() * ( i + 1 ) );
		var tempi = myArray[i];
		var tempj = myArray[j];
		myArray[i] = tempj;
		myArray[j] = tempi;
	}
	
	return myArray;
}


function getMousePosition(element, evt){
	var elementOffset = $(element).offset();
	
	var currentMouseX = 0;
	var currentMouseY = 0;
	
	//TODO evil iPad hack
	if (evt.pageX != 0 && evt.pageY != 0){
		currentMouseX = evt.pageX;
		currentMouseY = evt.pageY;
	}
	//TODO /evil iPad hack
	
    return {
      x: currentMouseX - elementOffset.left,
      y: currentMouseY - elementOffset.top
    };
};


function isCanvasSupported(){
    var elem = document.createElement('canvas');
    return !!(elem.getContext && elem.getContext('2d'));
}

window.accurateInterval = function(time, fn) {
    var cancel, nextAt, timeout, wrapper, _ref;
    nextAt = new Date().getTime() + time;
    timeout = null;
    if (typeof time === 'function') _ref = [time, fn], fn = _ref[0], time = _ref[1];
        wrapper = function(){
            nextAt += time;
            timeout = setTimeout(wrapper, nextAt - new Date().getTime());
            return fn();
        };
        cancel = function() {
        return clearTimeout(timeout);
    };
    timeout = setTimeout(wrapper, nextAt - new Date().getTime());
    return {
        cancel: cancel
    };
};