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	focus.js - firefox-fix-web - Firefox extension: fix web
	git clone git://git.codemadness.org/firefox-fix-web
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	focus.js (1260B)
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	1 (function() {
	2 function hasfocus(el) {
	3 return el === document.activeElement;
	4 }
	5 function findfield() {
	6 var found = null;
	7 var el = document.activeElement;
	8 if(typeof(el) == 'object') {
	9 var type = (el.type \|\| '').toLowerCase();
	10 if(el.tagName == 'INPUT' && ['text', 'search'].i…
	11 found = el;
	12 }
	13 if(found === null) {
	14 var els = document.getElementsByTagName('input')…
	15 for(var i = 0; i < els.length; i++) {
	16 var type = (els[i].type \|\| '').toLowerCa…
	17 if(['text', 'search'].indexOf(type) != -…
	18 found = els[i];
	19 break;
	20 }
	21 }
	22 }
	23 if(found !== null) {
	24 return found;
	25 }
	26 return null;
	27 }
	28 function focusfield(el) {
	29 if(el === null)
	30 return el;
	31 el.click(); // Some sites require this to clear the inpu…
	32 var value = el.value \|\| '';
	33 el.selectionStart = 0; // value.length;
	34 el.selectionEnd = value.length;
	35 el.focus();
	36 return el;
	37 }
	38 function blurfield(el) {
	39 el.blur();
	40 }
	41 function onkeydown(e) {
	42 if(e.ctrlKey && e.keyCode == 32) { /* ctrl + space */
	43 var el = findfield();
	44 /* toggle */
	45 if(hasfocus(el)) {
	46 blurfield(el);
	47 } else {
	48 focusfield(el);
	49 }
	50
	51 }
	52 }
	53 window.addEventListener('keydown', onkeydown, true);
	54 // focusfield(findfield());
	55 })();