//Maybe this could be done shorter, but I hope checking IE too makes it more reliable//Maybe this could be done shorter, but I hope checking IE too makes it more reliable
Object.extend(Prototype.Browser, {
	IE6: 	Prototype.Browser.IE && (typeof window.XMLHttpRequest == "undefined"),
	IE7: 	Prototype.Browser.IE && (typeof window.XMLHttpRequest == "object")
});