function IsValidEmail(str) {
	var at="@";
	var dot=".";
	var lat=str.indexOf(at);
	var lstr=str.length;
	var ldot=str.indexOf(dot);
	if (str.indexOf(at) == -1) {
		return false;
	}
	if (str.indexOf(at) == -1 || str.indexOf(at) == 0 || str.indexOf(at) == lstr) {
		return false;
	}
	if (str.indexOf(dot) == -1 || str.indexOf(dot) == 0 || str.indexOf(dot) == lstr) {
		return false;
	}
	if (str.indexOf(at,(lat+1)) != -1) {
		return false;
	}
	if (str.substring(lat-1,lat) == dot || str.substring(lat+1,lat+2) == dot) {
		return false;
	}
	if (str.indexOf(dot,(lat+2)) == -1) {
		return false;
	}
	if (str.indexOf(" ") != -1) {
		return false;
	}
	return true;
}

function IsAllSpaces(str) {
	var textLength = str.length;
	for (var i=0; i<textLength; i++) {
		if (str.charAt(i) != ' ') {
			return false
		}
	}
	return true;
}

function ValidateSearch(f) {
	if (!f.keyword.value.length || isAllSpaces(f.keyword.value)) {
		f.keyword.select();
		alert('Please type in your search terms');
		return false;
	}
	return true;
}

function BookmarkSite() {
    window.external.AddFavorite('http://www.greentopscampground.com/', 'Green Tops Campground');
}

function OpenWindowCentered(file, winWidth, winHeight) {
    var locX = ((screen.width / 2) - (winWidth / 2));
    var locY =  ((screen.height / 2) - (winHeight / 2));
    var winParms = "width=" + winWidth + ",height=" + winHeight + ",left=" + locX + 
        ",top=" + locY + ",resizable=no";
    window.open (file, "EmailWindow", winParms);
}

function clickIE4() {
    if (event.button == 2) {
        alert('Right Click Disabled');
        return false;
    }
}

function clickNS4(e) {
    if (document.layers||document.getElementById&&!document.all) {
        if (e.which == 2 || e.which == 3) {
            alert('Right Click Disabled');
            return false;
        }
    }
}

if (document.layers) {
    document.captureEvents(Event.MOUSEDOWN);
    document.onmousedown=clickNS4;
} else if (document.all&&!document.getElementById) {
    document.onmousedown=clickIE4;
}

document.oncontextmenu = new Function("alert('Right Click Disabled'); return false;")