How to resize images proportionally / keeping the aspect ratio?

Question

I have images that will be quite big in dimension and I want to shrink them down with jQuery while keeping the proportions constrained, i.e. the same aspect ratio.

C

Answer 1

Without additional temp-vars or brackets.

    var width= $(this).width(), height= $(this).height()
      , maxWidth=100, maxHeight= 100;

    if(width > maxWidth){
      height = Math.floor( maxWidth * height / width );
      width = maxWidth
      }
    if(height > maxHeight){
      width = Math.floor( maxHeight * width / height );
      height = maxHeight;
      }

Keep in Mind: Search engines don't like it, if width and height attribute does not fit the image, but they don't know JS.