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function historyRadios(parent) {
var inputs = parent.getElementsByTagName('input');
var radios = [];
for (var i = 0; i < inputs.length; i++) {
if (inputs[i].name == "diff" || inputs[i].name == "oldid") {
radios[radios.length] = inputs[i];
}
}
return radios;
}
// check selection and tweak visibility/class onclick
function diffcheck() {
var dli = false; // the li where the diff radio is checked
var oli = false; // the li where the oldid radio is checked
var hf = document.getElementById('pagehistory');
if (!hf) {
return true;
}
var lis = hf.getElementsByTagName('li');
for (var i=0;i<lis.length;i++) {
var inputs = historyRadios(lis[i]);
if (inputs[1] && inputs[0]) {
if (inputs[1].checked || inputs[0].checked) { // this row has a checked radio button
if (inputs[1].checked && inputs[0].checked && inputs[0].value == inputs[1].value) {
return false;
}
if (oli) { // it's the second checked radio
if (inputs[1].checked) {
if ( (typeof oli.className) != 'undefined') {
oli.classNameOriginal = oli.className.replace( 'selected', '' );
} else {
oli.classNameOriginal = '';
}
oli.className = "selected "+oli.classNameOriginal;
return false;
}
} else if (inputs[0].checked) {
return false;
}
if (inputs[0].checked) {
dli = lis[i];
}
if (!oli) {
inputs[0].style.visibility = 'hidden';
}
if (dli) {
inputs[1].style.visibility = 'hidden';
}
if ( (typeof lis[i].className) != 'undefined') {
lis[i].classNameOriginal = lis[i].className.replace( 'selected', '' );
} else {
lis[i].classNameOriginal = '';
}
lis[i].className = "selected "+lis[i].classNameOriginal;
oli = lis[i];
} else { // no radio is checked in this row
if (!oli) {
inputs[0].style.visibility = 'hidden';
} else {
inputs[0].style.visibility = 'visible';
}
if (dli) {
inputs[1].style.visibility = 'hidden';
} else {
inputs[1].style.visibility = 'visible';
}
lis[i].className = lis[i].classNameOriginal;
}
}
}
return true;
}
// page history stuff
// attach event handlers to the input elements on history page
function histrowinit() {
var hf = document.getElementById('pagehistory');
if (!hf) {
return;
}
var lis = hf.getElementsByTagName('li');
for (var i = 0; i < lis.length; i++) {
var inputs = historyRadios(lis[i]);
if (inputs[0] && inputs[1]) {
inputs[0].onclick = diffcheck;
inputs[1].onclick = diffcheck;
}
}
diffcheck();
}
hookEvent("load", histrowinit);
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