javascript - 将 img src 存储在 JavaScript 变量中

Question

当我单击图像时，我想存储该特定图像 src在 JavaScript 变量中。我怎样才能做到这一点？请记住<a>标签用于悬停效果。所以当我点击 <a>我想要它的兄弟的图像源。

演示:http://jsfiddle.net/FVrTg/2

<div>
    <img src = "http://upload.wikimedia.org/wikipedia/commons/thumb/2/26/YellowLabradorLooking_new.jpg/260px-YellowLabradorLooking_new.jpg"/>
    <a href = "#"></a>
</div>

<div>
    <img src = "http://whatiscat.com/wp-content/uploads/2011/07/cute_cat_2.whatiscat.com_.jpg"/>
    <a href = "#"></a>
</div>

​

Answer 1

$("a").on("click", function() {
    alert ( $(this).siblings("img").attr("src") );
});

demo

...

更新

仅限 JS - http://jsfiddle.net/FVrTg/7/

var links = document.getElementsByTagName("a");
var size  = links.length;

for ( var i = 0; i < size; i++ ) {
    links[i].addEventListener("click", function() {
        alert( this.previousSibling.previousSibling.getAttribute("src") );
    }, false);
}