prototype问题.

[xiaoZZzz]

<div id="div1"></div>
<input type="text" id="text1" />

var obj1 = document.getElementById("div1");

var obj2 = document.getElementById("text1");

Object.prototype.add = function(str)
{
this.innerHTML = str;
//或this.value = str;
}

obj1.add("123");
obj2.add("123");

出错,求解..

[ruiban]

JS没有HTMLElement类..

[muxrwc]

<div id="div1"></div>
<input type="text" id="text1" />
<script type="text/javascript">
Object.extend = function (object, source) {
	var i;
	for (i in source) object[i] = source[i];
	return object;
};

var $ = function(id, os) {
	var o = document.getElementById(id);
	if (!o) return;
	return Object.extend(o, {
		add : function (str) {
			if (this.value !== undefined) this.value = str;
			try {
				if (this.innerHTML !== undefined) this.innerHTML = str;
			} catch (exp) {}
		}
	});
};

var obj1 = $("div1");
var obj2 = $("text1");
obj1.add("123");
obj2.add("123");
</script>

[muxrwc]

刚没写好，我重写下。。。>.<

<div id="div1"></div>
<input type="text" id="text1" />
<script type="text/javascript">
Object.extend = function (object, source) {
	var i;
	for (i in source) object[i] = source[i];
	return object;
};

var $ = function(id, os) {
	var o = document.getElementById(id);
	if (!o) return;
	return Object.extend(o, os);
};

var OBJECTHTMLELEMENT = {
	add : function (str) {
		if (this.value !== undefined) this.value = str;
		try {
			if (this.innerHTML !== undefined) this.innerHTML = str;
		} catch (exp) {}
	}
};

var $ohe = function (id) {
	return $(id, OBJECTHTMLELEMENT);
};

var obj1 = $ohe("div1");
var obj2 = $ohe("text1");
obj1.add("123");
obj2.add("123");
</script>

[hztgcl1986]

看看楼上的吧