如何用Jscript中的变量控制图像的宽度？

[zcc174]

比如已定义了一个变量c1,在图像标签中如何引用？
width=c1和width="c1"都不行啊。

[saucer]

it does not work that way, try

<script language="javascript">
var sWidth = 100;
</script>
<img src="http://www.csdn.net/images/csdn.gif" style="width:expression(sWidth);">
<input type="button" value="change" onclick="sWidth +=100;">

[meizz]

<script language=javascript>
var ww = 100;
</script>

<img src="http://www.csdn.net/images/csdn.gif" onload="this.width=ww">