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function tvsInit() {
if(!byId('tagops'))
return;
var l = byName(byId('tagops'), 'a');
for(var i=0;i<l.length; i++)
l[i].onclick = tvsClick;
tvsSet();
}
function tvsClick() {
var sel;
var l = byName(byId('tagops'), 'a');
for(var i=0; i<l.length; i++)
if(l[i] == this) {
if(i < 3) { /* categories */
setClass(l[i], 'tsel', !hasClass(l[i], 'tsel'));
tvsSet();
} else if(i < 6) { /* spoiler level */
tvsSet(i-3);
} else /* limit */
tvsSet(null, i == 6);
}
return false;
}
function tvsSet(lvl, lim, cats) {
/* set/get level and limit to/from the links */
var l = byName(byId('tagops'), 'a');
var cat = cats || [];
for(var i=0; i<l.length; i++) {
if(i < 3) { /* categories */
var c = l[i].href.substr(l[i].href.indexOf('#')+1);
if(cats) {
for(var j=0; j<cats.length && c != cats[j]; j++) ;
setClass(l[i], 'tsel', j != cats.length);
} else {
if(hasClass(l[i], 'tsel'))
cat.push(c);
}
} else if(i < 6) { /* spoiler level */
if(lvl != null)
setClass(l[i], 'tsel', i-3 == lvl);
if(lvl == null && hasClass(l[i], 'tsel'))
lvl = i-3;
} else { /* display limit (6 = summary) */
if(lim != null)
setClass(l[i], 'tsel', lim == (i == 6));
if(lim == null && hasClass(l[i], 'tsel'))
lim = i == 6;
}
}
/* update tag visibility */
l = byName(byId('vntags'), 'span');
lim = lim ? 15 : 999;
var s=0;
for(i=0;i<l.length;i++) {
var thislvl = l[i].className.substr(6, 1);
for(var j=0; j<cat.length && !hasClass(l[i], 'cat_'+cat[j]); j++) ;
if(thislvl <= lvl && s < lim && j != cat.length) {
setClass(l[i], 'hidden', false);
s++;
} else
setClass(l[i], 'hidden', true);
}
}
tvsInit();
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