<input id="addr_more1" size="35" name="addr_more1" url="true">
<input id="addr_more2" size="35" name="addr_more2" url="true">
<input id="addr_more3" size="35" name="addr_more3" url="true">
<input id="addr_more4" size="35" name="addr_more4" url="true">

<SCRIPT language=JavaScript type=text/javascript>
    function addEvent(eventHandler)
    {
        var tags = document.getElementsByTagName('input');
        for(var i=0;i<tags.length;i++)
        {
            if(tags[i].getAttribute('url') == 'true')
            {
                if(tags[i].addEventListener)
                {
                    tags[i].addEventListener('keyup',eventHandler,true);
                }
                else
                {
                    tags[i].attachEvent('onkeyup',eventHandler);
                }
            }
        }
    }
    function addInput(e)
    {
        var obj = e.target ? e.target : e.srcElement;
        var tags = document.getElementsByTagName('input');
        for(var i=0;i<tags.length;i++)
        {
            if(tags[i].getAttribute('url') == 'true'&&tags[i]!=obj)
            {
                tags[i].value = obj.value;
            }
        }
    }
    window.onload = function()
    {
        addEvent(addInput);
    }
</SCRIPT>