<script type="text/javascript" language="javascript">
function changeBorder(element, to)
{
 element.style.borderColor = to;
}
var contentDiv = document.getElementById('content');
contentDiv.onmouseover = function()
{
 changeBorder('red');
};
contentDiv.onmouseout = function()
{
 changeBorder('black');
};
</script>

<script type="text/javascript" language="javascript">
function changeBorder(element, to)
{
 element.style.borderColor = to;
}
var contentDiv = document.getElementById('content');
contentDiv.onmouseover = function()
{
 changeBorder(this,'red');
}
contentDiv.onmouseout = function()
{
 changeBorder(this,'black');
}</script>