function showPic(whichpic) {
if (!document.getElementById("placeholder")) return true;//1.比如这个:如果浏览器不支持。也没别的函数调用这个函数。那 return false 传给谁?谁会接收这个return?
var source = whichpic.getAttribute("href");
var placeholder = document.getElementById("placeholder");
placeholder.setAttribute("src",source);
if (!document.getElementById("description")) return false;
if (whichpic.getAttribute("title")) {
var text = whichpic.getAttribute("title");
} else {
var text = "";
}
var description = document.getElementById("description");
if (description.firstChild.nodeType == 3) {
description.firstChild.nodeValue = text;
}
return false;
}
for ( var i=0; i < links.length; i++) {
links[i].onclick = function() {
return showPic(this);
}
links[i].onkeypress = links[i].onclick;
}
}
这些代码是js dom编程艺术里的。
我买了个手表
KevenHuang
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