O'Reilly Forums: lse123polis - Viewing Profile - O'Reilly Forums

I am JAVA guy plan to read the below Java books, well started with first, but wondering if anyone knows the right series to read them, So begin with ... end with(road map)...?

• Head First> Head First Software Development
  
• Head First Object-Oriented Analysis & Design
  
• Head First Design Patterns

as of my Java background, I have read 2-3 java/jsp programming books incl DEITEL JAVA htp 7e, etc...

in RESPONSIVE DESIGN (one web design PC-TABLET-PHONE) is best use jQuery Mobile, for buttons and all kind of functionality?
or not is not supported by most current browsers(in case what appear then for a jQ mobile button if no support?)?
You do this?

I am going implement below in ch.10-fractal exa, but when initiate ondblclick before finish execution, startup the onclick function... what to do to can click one of the two not the other?

	
	canvas.ondblclick = function() {
		window.location = canvas.toDataURL('image/png');
	};
	canvas.onclick = function(event) {
		//var t=setTimeout(function(){alert("done")},10000)
		handleClick(event.clientX, event.clientY);
	};

/chapter10/pingpong.html

why this does not give alert even with
if (event.data != "ping")
... if not first block (if) activated isn't going to get activated 2nd else block???????????????

onmessage = pingpong;

function pingpong(event) {
	if (event.data == "ping") {
		postMessage("pong");
	}
	else{//if (event.data != "ping")
		postMessage("nopong");
	}
}


window.onload = function() {
	var worker = new Worker("worker.js");
	worker.onmessage = function(event) {
		alert("Worker says " + event.data);
	}

	for (var i = 5; i > 0; i--) {
		worker.postMessage("pong");
	}
}

I am having difficulty appear two images (or more) or one image and a canvas all in a another canvas, the problem is only one image appear from the 2 or 3 images… is any stack order? What to do?

using drawImage