function getBrowser()
{
	var Ie4,Nav4,other_brwsr
	var brwsr="NA"
	var ms=navigator.appVersion.indexOf("MSIE")
	if (ms>0) {
		if (parseInt(navigator.appVersion.substring(ms+5,ms+6))>=4) {
			brwsr="ie4"
		}
	} else {
		if (navigator.appName=="Netscape") {
			if (parseInt(navigator.appVersion.substring(0,1))>=4) {
				brwsr="nav4"
			}
		} else {
			brwsr="other"
		}
	}
	return brwsr
}

function checkTop(currpage)
{
	var homesite="http://www.mipatagonia.com/regiones/chubut/comodoro_rivadavia/museo_del_petroleo/"
	//var homesite="http://localhost/regiones/chubut/comodoro_rivadavia/museo_del_petroleo/"
	if (top.location!=(homesite+currpage)) {
		top.location=homesite+currpage
	}
}

function swapImage(callingObj,imgID,imgName)
{
	var brwsr=getBrowser()
	if (brwsr!="nav4") {
		callingObj.document.images(imgID).src=imgName
	}
}