Focus order.js

(function () {

 var gi_order = 1;

traverseFrames(document);

 	function traverseFrames(doc) {

// check for sr-only class in current document and then check it's frames

     var nl = doc.querySelectorAll("[tabindex], button, a[href], area, input, select, textarea, iframe");	

initHelper(doc,nl); // go through for each frame's document if there are any frames var frametypes= ['frame','iframe']; for (var i=0; i<frametypes.length; i++) { var myframes=doc.getElementsByTagName(frametypes[i]); for (var z=0;z<myframes.length;z++) { try { traverseFrames(myframes[z].contentWindow.document); }

  				catch(e) {

} } } }

function initHelper(doc, nl) { var ar = []; var positive = []; var ar_position = 0; var positive_position = 0;

for (var i=0; i < nl.length; i++) { if (!nl[i].hasAttribute('disabled') ) {

if (nl[i].hasAttribute('tabindex') ) { if ( nl[i].getAttribute('tabindex') == 0 ) {

ar[ar_position] = nl[i]; ar_position++; } else if ( parseInt(nl[i].getAttribute('tabindex')) > 0 ) { positive[positive_position] = nl[i]; positive_position++; } } else { // no tabindex

ar[ar_position] = nl[i]; ar_position++; } } }

positive.sort(function(a, b) { return parseInt(a.getAttribute('tabindex'),10) - parseInt(b.getAttribute("tabindex"),10); });

for (var i=0; i < positive.length; i++) { s = doc.createElement('span'); t = doc.createTextNode(gi_order); gi_order++; s.appendChild(t); s.style.backgroundColor = 'darkblue'; s.style.color = 'white'; s.style.fontSize = "small"; s.style.paddingLeft = ".1em"; s.style.paddingRight = ".1em"; positive[i].style.border = "thin dotted darkblue "; positive[i].parentNode.insertBefore(s,positive[i]); } for (var i=0; i < ar.length; i++) { s = doc.createElement('span'); t = doc.createTextNode(gi_order); gi_order++; s.appendChild(t); s.style.backgroundColor = 'darkblue'; s.style.color = 'white'; s.style.display = "inline-block"; s.style.fontSize = "small"; s.style.paddingLeft = ".1em"; s.style.paddingRight = ".1em"; ar[i].style.border = "thin dotted darkblue"; ar[i].parentNode.insertBefore(s,ar[i]); } }

})();