JS+CSS给图片加上鼠标滑过的方框

<title>JS+CSS给图片加上鼠标滑过的方框</title>

<style>

.borderimage{

border:3px solid #ffffff;

}

</style>

<script language="JavaScript">

function borderit(which,color){

//if IE 4+ or NS 6+

if (document.all||document.getElementById){

which.style.borderColor=color

}

}

</script>

<img src="wall_s7.jpg" class="borderimage" onMouseover="borderit(this,'#cccccc')" onMouseout="borderit(this,'white')">