<div id="div_001"> <form id="form_001"> <input type="button" id="button_001_id" name="button_001_Name" value="单击查看" class="button_001_Class" onclick="Get_srcElement(event)"> <select name="selectname" onchange="alert(event.srcElement.options[event.srcElement.selectedIndex].value);"> <option value='001'>1</option> <option value='002'>2</option> <option value='003'>3</option> <option value='004'>4</option> <option value='005'>5</option> </select> </form> </div> <script> function Get_srcElement(evgl) { 　　var srcElement="" 　　 //判断是IE 还是Firefox 　　var evg=evgl.srcElement?evgl.srcElement:evgl.target; 　　srcElement = srcElement + "\n" + "button_001_id----event.srcElement.id : " + evg.id 　　srcElement = srcElement + "\n" + "input---event.srcElement.tagName : " + evg.tagName 　　srcElement = srcElement + "\n" + "button---event.srcElement.type : " + evg.type 　　srcElement = srcElement + "\n" + "单击查看---event.srcElement.value : " + evg.value 　　srcElement = srcElement + "\n" + "button_001_Name---event.srcElement.name : " + evg.name 　　srcElement = srcElement + "\n" + "button_001_Class---event.srcElement.className : " + evg.className 　　//IE 支持parentElement FireFox支持parentNode 　　srcElement = srcElement + "\n" + "form_001---event.srcElement.parentElement.id : " + 　　　　evg.parentNode.id 　　srcElement = srcElement + "\n" + "event.srcElement.getattribute : " + evg.getAttribute 　　alert(srcElement); } </script>