Question

如何在javascript里设置表单为只读属性

Answer 1

你是要设置表单的什么元素为只读？如果是text或textarea，加一个参数readonly就行了

追问

喔喔太感谢了

Answer 2

function check(){
var txtN = document.getElementById("test");
txtN.setAttribute("readonly",true,0);
}

setAttribute 这个方法一定要注意,有三个参数
object.setAttribute(sName, vValue [, iFlags])

last arg
iFlags: Optional. Integer that specifies one the following flags: 0 When the attribute is set, it overwrites any attributes with the same name, regardless of their case.
1 Default. The case of the attribute that you set is respected when it is set on the object.