Question

I m trying to reference a specific td id with an external Javascript file and am having trouble. I m just trying to create a simple mouseOver event that will display some different content when the user rolls over an image in a table that is labelled like this:

<td id="lifeCalculatorButton">imagefoo</td>

in the external Javascript would I write the function like this?:

function mouseOver(lifeCalculatorButton){
  //some code
}

你们可以看到,总损失很少。

Answer 1

document.getElementById( lifeCalculatorButton ).onmouseover = function() { ... };

......

或者,你可以走高路:

<td id="lifeCalculatorButton" onmouseover="MouseOver()">imagefoo</td>

Answer 2

使用 ElementById

var el = document.getElementById("lifeCalculatorButton");
el.onmouseover = function(){
  //somecode
}

EDIT:改为:P

友情链接