function add_onload(func)
{
	var oldonload = window.onload;
	if (typeof(window.onload) != 'function') {
		window.onload = func;
	} else {
		window.onload = function() {
			oldonload();
			func();
		}
	}
}

IS_IE6 = false;
function common_onload()
{
	if (!!(window.attachEvent && !window.opera)) {
		if (typeof document.body.style.maxHeight == "undefined") { 
			IS_IE6 = true;
		}
	}
}
add_onload(common_onload);

//change image
function ci(o, s)
{
	o.src = s;
}