var OpenWin = '';
var flag = 0;

// позиционирование плашки
function positioning(arg)
{
        arg.style.top=document.body.scrollTop;
}

// клик на документе
function closewin()
{   
	if(flag==1){
	        document.getElementById('photowin').style.display = 'none';
	        document.onclick = null;
	}
	flag=1;
}

function openwin(url, w, h){
	OpenWin = 'photowin';
	arg = eval("document.getElementById('photowin')");

	document.getElementById('wphoto').src = url;
	document.getElementById('wphoto').width = w;
	document.getElementById('wphoto').height = h;

	if(arg.style.display!='block')
	{
	        positioning(arg);
	        arg.style.display = 'block';
	}
	flag=0;
	document.onclick = closewin;
	return false;
}

window.onscroll=fffff;
function fffff(){
        if (OpenWin!='')
                positioning(document.getElementById('photowin'));
}