用的核心代码
function $(obj){
return document.getelementbyid(obj);
}
window.onload = function(){
var table = document.getelementbyid(mytable);
//如果在表格区域内产生单击
table.onclick = function(e){
var e = window.event||e,target = e.srcelement||e.target;
//得到tr
while(target.tagname.tolowercase() != tr){
target = target.parentnode;
}
var i = target.rowindex;
//单击单行的tr的话就是控制tr + 1的隐藏和显示
if(i%2 == 0){
var nrs = table.rows[i + 1].parentnode.style;
nrs.display = nrs.display == none?:none;
}
}
}
灞