隐藏切换功能，希望简单明了，兄弟们来看看

Question

设置style.display == "none"和style.display == ""就可以了，具体代码自己实现吧

Answer 1

抱歉，是
style.display = "none"和style.display = ""

Answer 2

我也写了点程序，只是不精呀
function arrange() { 
   nextY = document.layers[firstInd].pageY +document.layers[firstInd].document.height; 
   for (i=firstInd+1; i<document.layers.length; i++) { 
       whichEl = document.layers[i];
       if (whichEl.visibility != "hide") {  
           whichEl.pageY = nextY;
           nextY += whichEl.document.height; }  
  }
}function initIt(){ 
   if (!ver4) return;    
   if (NS4) {
        for (i=0; i<document.layers.length; i++) {
       whichEl = document.layers[i];
            if (whichEl.id.indexOf("Child") != -1)
               whichEl.visibility = "hide"; 
          }
        arrange(); 
      }
   else { 
       divColl = document.all.tags("DIV"); 
       for (i=0; i<divColl.length; i++) {  
          whichEl = divColl(i);
          if (whichEl.className == "child")
             whichEl.style.display = "none";  
         }
   }
}
function expandIt(el) {
    if (!ver4) return; 
    if (IE4) {
        whichEl1 = eval(el + "Child");
        for(i=1;i<=numTotal;i++){
       whichEl = eval(scores[i] + "Child");
           if(whichEl!=whichEl1) {
     whichEl.style.display = "none";}
        }        whichEl1 = eval(el + "Child"); 
        if (whichEl1.style.display == "none") {
             whichEl1.style.display = "block";  }
        else {
           whichEl1.style.display = "none";  }
        }    
     else {
        whichEl = eval("document." + el +"Child");
for(i=1;i<=numTotal;i++){
           whichEl =eval("document." + scores[i] + "Child");                              if(whichEl!=whichEl1) {whichEl.visibility = "hide";}
      }
        if(whichEl.visibility == "hide") { whichEl.visibility = "show"; }
           else { whichEl.visibility = "hide";  }
        arrange();
     }
}

Answer 3

<TABLE  onclick="this.firstChild.style.visibility=this.firstChild.style.visibility=='hidden'?'visible':'hidden'" id="Table1" cellSpacing="1" cellPadding="1" width="300" border="1">
<TR>
<TD> 1 </TD>
<TD> 2</TD>
<TD> 3</TD>
</TR>
<TR>
<TD> 4 </TD>
<TD>5</TD>
<TD> 6</TD>
</TR>
 
</TABLE>

Answer 4

当用户点击父节点时，所有显示的子节点隐藏，隐藏的子节点显示
<TABLE  onclick ="for (i=0;i<this.childNodes.length;i++) {this.childNodes[i].style.visibility=this.childNodes[i].style.visibility=='hidden'?'visible':'hidden';}" id="Table1" cellSpacing="1" cellPadding="1" width="300" border="1">
<TR>
<TD> 1 </TD>
<TD> 2</TD>
<TD> 3</TD>
</TR>
<TR>
<TD> 4 </TD>
<TD>5</TD>
<TD> 6</TD>
</TR>
 
</TABLE>

Answer 5

利用div 和class 
oid.style.display ="block"显示
oid1.style.display ="none"隐藏