关于Button和Div的从属性有关问题，也许不可能解决
日期：2014-05-16 浏览次数：20405 次
关于Button和Div的从属性问题，也许不可能解决!
例如下面的HTML，怎样知道Button1属于Div1，Button2属于Div2? 可以用探出窗口提示。
<html>
<head>
</head>
<body>
<div id= "div1 ">
<form method= "post ">
<input name= "Button1 " type= "button " value= "button " /> </form>
</div>
<div id= "div2 ">
<form method= "post ">
<input name= "Button2 " type= "button " value= "button " /> </form>
</div>
</body>
</html>
------解决方案--------------------
<html>
<script>
function doit(sID){
var obj = event.srcElement;
var b = false;
while(obj.tagName!= "BODY "){
if(obj.id && obj.id==sID){
b =true;
alert( "I belong to tag " + obj.tagName + " : id = " + obj.id);
break;
}
obj = obj.parentElement;
}
if(!b) alert( "not found ");
}
</script>
<body>
<div id= "div1 ">
<form method= "post ">
<input name= "Button1 " type= "button " value= "button " onclick= "doit( 'div1 '); "/> </form>
</div>
<div id= "div2 ">
<form method= "post ">
<input name= "Button2 " type= "button " value= "button " onclick= "doit( 'div2 '); "/> </form>
</div>
</body>
</html>
------解决方案--------------------
i think you can use some js library like mochikit to resovle this problem,if you know one of input,you can use parentNode attribute to find their parents
例如下面的HTML，怎样知道Button1属于Div1，Button2属于Div2? 可以用探出窗口提示。
<html>
<head>
</head>
<body>
<div id= "div1 ">
<form method= "post ">
<input name= "Button1 " type= "button " value= "button " /> </form>
</div>
<div id= "div2 ">
<form method= "post ">
<input name= "Button2 " type= "button " value= "button " /> </form>
</div>
</body>
</html>
------解决方案--------------------
<html>
<script>
function doit(sID){
var obj = event.srcElement;
var b = false;
while(obj.tagName!= "BODY "){
if(obj.id && obj.id==sID){
b =true;
alert( "I belong to tag " + obj.tagName + " : id = " + obj.id);
break;
}
obj = obj.parentElement;
}
if(!b) alert( "not found ");
}
</script>
<body>
<div id= "div1 ">
<form method= "post ">
<input name= "Button1 " type= "button " value= "button " onclick= "doit( 'div1 '); "/> </form>
</div>
<div id= "div2 ">
<form method= "post ">
<input name= "Button2 " type= "button " value= "button " onclick= "doit( 'div2 '); "/> </form>
</div>
</body>
</html>
------解决方案--------------------
i think you can use some js library like mochikit to resovle this problem,if you know one of input,you can use parentNode attribute to find their parents
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