阻止事件冒泡
可使用event.stopPropagation阻止W3C的冒泡,
event.cancelBubble=true阻止IE的冒泡.
e.preventDefault();取消默认事件, 如link打开窗口事件.
例如:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml" lang="gb2312"><head><title>阻止JavaScript事件冒泡传递（cancelBubble 、stopPropagation）</title><meta name="keywords"content="JavaScript,事件冒泡,cancelBubble,stopPropagation" /><script type="text/javascript">function doSomething(obj, evt) {var e = (evt) ? evt : window.event;if (window.event) {e.cancelBubble = true;} else {//e.preventDefault(); e.stopPropagation();}}</script></head><body><div id="parent1" onclick="alert(this.id)"style="width: 250px; background-color: yellow"><p>This is parent1 div.</p><div id="child1" onclick="alert(this.id)"style="width: 200px; background-color: orange"><p>This is child1.</p></div><p>This is parent1 div.</p></div><br /><div id="parent2" onclick="alert(this.id)"style="width: 250px; background-color: cyan;"><p>This is parent2 div.</p><div id="child2" onclick="doSomething(this,event);"style="width: 200px; background-color: lightblue;"><p>This is child2. Will bubble.</p></div><p>This is parent2 div.</p></div></body></html>