function openwindow(url)
{
	day = new Date();
	id = day.getTime();
	eval("page" + id + " = window.open(url, '" + id + "', 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=1,width=800,height=600,left=40,top=40');");
}

function openwindow(url, width, height)
{
	day = new Date();
	id = day.getTime();
	eval("page" + id + " = window.open(url, '" + id + "', 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=1,width=" + width + ",height=" + height + ",left=40,top=40');");
}

function togglevisibility(id) 
{
	t = (document.getElementById) ? document.getElementById(id) : document.all[id];

	if(t.style.display == 'none')
	{
		t.style.display = '';
	}
	else
	{
		t.style.display = 'none';
	}
}