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//CdnPath=http://ajax.aspnetcdn.com/ajax/4.5/6/Focus.js
function WebForm_FindFirstFocusableChild(control) {
if (!control || !(control.tagName)) {
return null;
}
var tagName = control.tagName.toLowerCase();
if (tagName == "undefined") {
return null;
}
var children = control.childNodes;
if (children) {
for (var i = 0; i < children.length; i++) {
try {
if (WebForm_CanFocus(children[i])) {
return children[i];
}
else {
var focused = WebForm_FindFirstFocusableChild(children[i]);
if (WebForm_CanFocus(focused)) {
return focused;
}
}
} catch (e) {
}
}
}
return null;
}
function WebForm_AutoFocus(focusId) {
var targetControl;
if (__nonMSDOMBrowser) {
targetControl = document.getElementById(focusId);
}
else {
targetControl = document.all[focusId];
}
var focused = targetControl;
if (targetControl && (!WebForm_CanFocus(targetControl)) ) {
focused = WebForm_FindFirstFocusableChild(targetControl);
}
if (focused) {
try {
focused.focus();
if (__nonMSDOMBrowser) {
focused.scrollIntoView(false);
}
if (window.__smartNav) {
window.__smartNav.ae = focused.id;
}
}
catch (e) {
}
}
}
function WebForm_CanFocus(element) {
if (!element || !(element.tagName)) return false;
var tagName = element.tagName.toLowerCase();
return (!(element.disabled) &&
(!(element.type) || element.type.toLowerCase() != "hidden") &&
WebForm_IsFocusableTag(tagName) &&
WebForm_IsInVisibleContainer(element)
);
}
function WebForm_IsFocusableTag(tagName) {
return (tagName == "input" ||
tagName == "textarea" ||
tagName == "select" ||
tagName == "button" ||
tagName == "a");
}
function WebForm_IsInVisibleContainer(ctrl) {
var current = ctrl;
while((typeof(current) != "undefined") && (current != null)) {
if (current.disabled ||
( typeof(current.style) != "undefined" &&
( ( typeof(current.style.display) != "undefined" &&
current.style.display == "none") ||
( typeof(current.style.visibility) != "undefined" &&
current.style.visibility == "hidden") ) ) ) {
return false;
}
if (typeof(current.parentNode) != "undefined" &&
current.parentNode != null &&
current.parentNode != current &&
current.parentNode.tagName.toLowerCase() != "body") {
current = current.parentNode;
}
else {
return true;
}
}
return true;
}
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