obj.disabled=false;
obj是一个select控件。
在火狐下这段代码有效,在IE6下无效,何故?我改成 if(drl.value==1)
{
obj.removeAttribute("disabled")
}
else
{
obj.setAttribute("disabled","disabled");
}还是不行。为什么?
obj是一个select控件。
在火狐下这段代码有效,在IE6下无效,何故?我改成 if(drl.value==1)
{
obj.removeAttribute("disabled")
}
else
{
obj.setAttribute("disabled","disabled");
}还是不行。为什么?
{
obj.removeAttribute("disabled")
}
else
{ obj.setAttribute("disabled",navigator.appName == "Microsoft Internet Explorer"?"disabled":"false");
}
如果在onchange里,ie有时要焦点移开才触发。
<html>
<head>
<title></title>
<script>
function check(checked) {
var select_number = document.getElementById("select_number");
document.title = new Date();
select_number.disabled = checked;
}
</script>
</head>
<body>
<input type="checkbox" onclick="check(this.checked)"/>
<select id="select_number"><option value="1">1</option><option value="2">2</option></select>
</body>
</html>
<HTML>
<HEAD>
<TITLE>
test
</TITLE>
<script type="text/javascript">
function test() {
var obj1 = document.forms[0].txttest;
var obj2 = document.forms[0].seltest; if (obj1.value == 1) {
obj2.removeAttribute("disabled")
} else {
obj2.setAttribute("disabled", "disabled");
}
}
</script>
</HEAD>
<BODY>
<form name="form1">
<input name="txttest" type="text" value="2" />
<input name="btntest" type="button" value="test" onclick="test();" />
<select name="seltest">
<option value="1">
1111
</option>
</select>
</form>
</BODY></HTML>