请问如何实现鼠标放上去自动切换的JS代码
现在的代码是非要鼠标点击才能切换，而我想鼠标放上去就自动切换，请问怎么修改呀，谢谢！！！就是达到新浪网http://www.的《教育、培训、招生、出国》，这种效果。
下面是我现在的代码
程序代码：
var Spry;
if (!Spry) Spry = {};
if (!Spry.Widget) Spry.Widget = {};
Spry.Widget.TabbedPanels = function(element, opts)
{
this.element = this.getElement(element);
this.defaultTab = 0; // Show the first panel by default.
this.bindings = [];
this.tabSelectedClass = "TabbedPanelsTabSelected";
this.tabHoverClass = "TabbedPanelsTabHover";
this.tabFocusedClass = "TabbedPanelsTabFocused";
this.panelVisibleClass = "TabbedPanelsContentVisible";
this.focusElement = null;
this.hasFocus = false;
this.currentTabIndex = 0;
this.enableKeyboardNavigation = true;
Spry.Widget.TabbedPanels.setOptions(this, opts);
if (typeof (this.defaultTab) == "number")
{
if (this.defaultTab < 0)
this.defaultTab = 0;
else
{
var count = this.getTabbedPanelCount();
if (this.defaultTab >= count)
this.defaultTab = (count > 1) ? (count - 1) : 0;
}
this.defaultTab = this.getTabs()[this.defaultTab];
}
if (this.defaultTab)
this.defaultTab = this.getElement(this.defaultTab);
this.attachBehaviors();
};
Spry.Widget.TabbedPanels.prototype.getElement = function(ele)
{
if (ele && typeof ele == "string")
return document.getElementById(ele);
return ele;
}
Spry.Widget.TabbedPanels.prototype.getElementChildren = function(element)
{
var children = [];
var child = element.firstChild;
while (child)
{
if (child.nodeType == 1 /* Node.ELEMENT_NODE */)
children.push(child);
child = child.nextSibling;
}
return children;
};
Spry.Widget.TabbedPanels.prototype.addClassName = function(ele, className)
{
if (!ele || !className || (ele.className && ele.className.search(new RegExp("\\b" + className + "\\b")) != -1))
return;
ele.className += (ele.className ? " " : "") + className;
};
Spry.Widget.TabbedPanels.prototype.removeClassName = function(ele, className)
{
if (!ele || !className || (ele.className && ele.className.search(new RegExp("\\b" + className + "\\b")) == -1))
return;
ele.className = ele.className.replace(new RegExp("\\s*\\b" + className + "\\b", "g"), "");
};
Spry.Widget.TabbedPanels.setOptions = function(obj, optionsObj, ignoreUndefinedProps)
{
if (!optionsObj)
return;
for (var optionName in optionsObj)
{
if (ignoreUndefinedProps && optionsObj[optionName] == undefined)
continue;
obj[optionName] = optionsObj[optionName];
}
};
Spry.Widget.TabbedPanels.prototype.getTabGroup = function()
{
if (this.element)
{
var children = this.getElementChildren(this.element);
if (children.length)
return children[0];
}
return null;
};
Spry.Widget.TabbedPanels.prototype.getTabs = function()
{
var tabs = [];
var tg = this.getTabGroup();
if (tg)
tabs = this.getElementChildren(tg);
return tabs;
};
Spry.Widget.TabbedPanels.prototype.getContentPanelGroup = function()
{
if (this.element)
{
var children = this.getElementChildren(this.element);
if (children.length > 1)
return children[1];
}
return null;
};
Spry.Widget.TabbedPanels.prototype.getContentPanels = function()
{
var panels = [];
var pg = this.getContentPanelGroup();
if (pg)
panels = this.getElementChildren(pg);
return panels;
};
Spry.Widget.TabbedPanels.prototype.getIndex = function(ele, arr)
{
ele = this.getElement(ele);
if (ele && arr && arr.length)
{
for (var i = 0; i < arr.length; i++)
{
if (ele == arr[i])
return i;
}
}
return -1;
};
Spry.Widget.TabbedPanels.prototype.getTabIndex = function(ele)
{
var i = this.getIndex(ele, this.getTabs());
if (i < 0)
i = this.getIndex(ele, this.getContentPanels());
return i;
};
Spry.Widget.TabbedPanels.prototype.getCurrentTabIndex = function()
{
return this.currentTabIndex;
};
Spry.Widget.TabbedPanels.prototype.getTabbedPanelCount = function(ele)
{
return Math.min(this.getTabs().length, this.getContentPanels().length);
};
Spry.Widget.TabbedPanels.addEventListener = function(element, eventType, handler, capture)
{
try
{
if (element.addEventListener)
element.addEventListener(eventType, handler, capture);
else if (element.attachEvent)
element.attachEvent("on" + eventType, handler);
}
catch (e) {}
};
Spry.Widget.TabbedPanels.prototype.onTabClick = function(e, tab)
{
this.showPanel(tab);
};
Spry.Widget.TabbedPanels.prototype.onTabMouseOver = function(e, tab)
{
this.addClassName(tab, this.tabHoverClass);
};
Spry.Widget.TabbedPanels.prototype.onTabMouseOut = function(e, tab)
{
this.removeClassName(tab, this.tabHoverClass);
};
Spry.Widget.TabbedPanels.prototype.onTabFocus = function(e, tab)
{
this.hasFocus = true;
this.addClassName(this.element, this.tabFocusedClass);
};
Spry.Widget.TabbedPanels.prototype.onTabBlur = function(e, tab)
{
this.hasFocus = false;
this.removeClassName(this.element, this.tabFocusedClass);
};
Spry.Widget.TabbedPanels.ENTER_KEY = 13;
Spry.Widget.TabbedPanels.SPACE_KEY = 32;
Spry.Widget.TabbedPanels.prototype.onTabKeyDown = function(e, tab)
{
var key = e.keyCode;
if (!this.hasFocus || (key != Spry.Widget.TabbedPanels.ENTER_KEY && key != Spry.Widget.TabbedPanels.SPACE_KEY))
return true;
this.showPanel(tab);
if (e.stopPropagation)
e.stopPropagation();
if (e.preventDefault)
e.preventDefault();
return false;
};
Spry.Widget.TabbedPanels.prototype.preorderTraversal = function(root, func)
{
var stopTraversal = false;
if (root)
{
stopTraversal = func(root);
if (root.hasChildNodes())
{
var child = root.firstChild;
while (!stopTraversal && child)
{
stopTraversal = this.preorderTraversal(child, func);
try { child = child.nextSibling; } catch (e) { child = null; }
}
}
}
return stopTraversal;
};
Spry.Widget.TabbedPanels.prototype.addPanelEventListeners = function(tab, panel)
{
var self = this;
Spry.Widget.TabbedPanels.addEventListener(tab, "click", function(e) { return self.onTabClick(e, tab); }, false);
Spry.Widget.TabbedPanels.addEventListener(tab, "mouseover", function(e) { return self.onTabMouseOver(e, tab); }, false);
Spry.Widget.TabbedPanels.addEventListener(tab, "mouseout", function(e) { return self.onTabMouseOut(e, tab); }, false);
if (this.enableKeyboardNavigation)
{
var tabIndexEle = null;
var tabAnchorEle = null;
this.preorderTraversal(tab, function(node) {
if (node.nodeType == 1 /* NODE.ELEMENT_NODE */)
{
var tabIndexAttr = tab.attributes.getNamedItem("tabindex");
if (tabIndexAttr)
{
tabIndexEle = node;
return true;
}
if (!tabAnchorEle && node.nodeName.toLowerCase() == "a")
tabAnchorEle = node;
}
return false;
});
if (tabIndexEle)
this.focusElement = tabIndexEle;
else if (tabAnchorEle)
this.focusElement = tabAnchorEle;
if (this.focusElement)
{
Spry.Widget.TabbedPanels.addEventListener(this.focusElement, "focus", function(e) { return self.onTabFocus(e, tab); }, false);
Spry.Widget.TabbedPanels.addEventListener(this.focusElement, "blur", function(e) { return self.onTabBlur(e, tab); }, false);
Spry.Widget.TabbedPanels.addEventListener(this.focusElement, "keydown", function(e) { return self.onTabKeyDown(e, tab); }, false);
}
}
};
Spry.Widget.TabbedPanels.prototype.showPanel = function(elementOrIndex)
{
var tpIndex = -1;
if (typeof elementOrIndex == "number")
tpIndex = elementOrIndex;
else // Must be the element for the tab or content panel.
tpIndex = this.getTabIndex(elementOrIndex);
if (!tpIndex < 0 || tpIndex >= this.getTabbedPanelCount())
return;
var tabs = this.getTabs();
var panels = this.getContentPanels();
var numTabbedPanels = Math.max(tabs.length, panels.length);
for (var i = 0; i < numTabbedPanels; i++)
{
if (i != tpIndex)
{
if (tabs[i])
this.removeClassName(tabs[i], this.tabSelectedClass);
if (panels[i])
{
this.removeClassName(panels[i], this.panelVisibleClass);
panels[i].style.display = "none";
}
}
}
this.addClassName(tabs[tpIndex], this.tabSelectedClass);
this.addClassName(panels[tpIndex], this.panelVisibleClass);
panels[tpIndex].style.display = "block";
this.currentTabIndex = tpIndex;
};
Spry.Widget.TabbedPanels.prototype.attachBehaviors = function(element)
{
var tabs = this.getTabs();
var panels = this.getContentPanels();
var panelCount = this.getTabbedPanelCount();
for (var i = 0; i < panelCount; i++)
this.addPanelEventListeners(tabs[i], panels[i]);
this.showPanel(this.defaultTab);
};
[[it] 本帖最后由 ylsn 于 2008-6-16 23:32 编辑 [/it]]
