这两个FUNCTION 有什么区别，一个是我写的，一个是别人写的，为什么我的不能用？
<script>
function wlll(sid){
whichEl = eval( "ll " + sid);
if (whichEl.style.display == "none "){
eval( "ll " + sid + ".style.display=\ "\ "; ");
}else{
eval( "ll " + sid + ".style.display=\ "none\ "; ");
}
}
//下面是我写的，呵呵，初学，别笑我！！
function wlll(){
if (ll1.style.display == "none "){
ll1.style.display == " ";
}else{
ll1.style.dispaly == "none ";
}
}
</script>
[解决办法]
<script type= "text/javascript ">
function wlll(sid) {
whichEl = eval( "w " + sid);
whichEl.style.display = (whichEl.style.display == "none " ? " " : "none ");
}
</script>
<input id= "wc " type= "button " value= "无辜的按钮 " />
<input type= "button " value= "隐藏/显示 " onClick= "javascript:wlll( 'c '); " />
