I am try create Isometric in HTML5 Canvas, but don't know how to convert HTML5 Canvas Screen coordinates to Isometric coordinates.
My code now is:
<pre>

 var mouseX = 0;
 var mouseY = 0;
 function mouseCheck(event) {
 mouseX = event.pageX;
 mouseY = event.pageY;
 }

</pre>
And I get Canvas coordinates. But how to convert this coordinates to Isometric coordinates? If I am something like use 16x16 tiles.

Thanks for everyone reply for this question and sorry for my English language.