//this is the image rollover function
function changeImage(image_name,image_src) {
	document.images[image_name].src = image_src;
}
//    Cookie JS for newsletter signup box
function getCookieVal (offset) {
	var endstr = document.cookie.indexOf (";", offset);
	if (endstr == -1)
		endstr = document.cookie.length;
	return unescape(document.cookie.substring(offset, endstr));
}
function FixCookieDate (date) {
	var base = new Date(0);
	var skew = base.getTime(); // dawn of (Unix) time - should be 0
	if (skew > 0)  // Except on the Mac - ahead of its time
		date.setTime (date.getTime() - skew);
}
function GetCookie (name) {
	var arg = name + "=";
	var alen = arg.length;
	var clen = document.cookie.length;
	var i = 0;
	while (i < clen) {
		var j = i + alen;
		if (document.cookie.substring(i, j) == arg)
			return getCookieVal (j);
		i = document.cookie.indexOf(" ", i) + 1;
		if (i == 0) break; 
	}
	return "";
}
function SetCookie (name,value,expires,path,domain,secure) {
	document.cookie = name + "=" + escape (value) +
	((expires) ? "; expires=" + "Thu, 01-Jan-2008 00:00:01 GMT" : "") +
	((path) ? "; path=" + path : "") +
	((domain) ? "; domain=" + domain : "") +
	((secure) ? "; secure" : "");
}
function DeleteCookie (name,path,domain) {
  if (GetCookie(name)) {
	document.cookie = name + "=" +
		((path) ? "; path=" + path : "") +
		((domain) ? "; domain=" + domain : "") +
		"; expires=Thu, 01-Jan-70 00:00:01 GMT";
  }
}
function newsletterCookie (formObj,email) {
	var expdate = new Date();
	FixCookieDate (expdate); // Correct for Mac date bug - call only once for given Date object!
	expdate.setTime (expdate.getTime() + (24 * 60 * 60 * 1000)); // 24 hrs from now 
	SetCookie ("newsletter", email.value, expdate);
	formObj.submit();
}

function jumpMenu(){
	location=document.jump.menu.options[document.jump.menu.selectedIndex].value+'?query='+document.jump.query.value;
}

function popMailWin() {
	var pageURL   = escape(self.document.URL);
	var pageTitle = escape(self.document.title);
	var formURL   = "/cgi-bin/mail/mailurl2friend.cgi?path=/yachting/email&url=" + pageURL + "&group=yachting&title=" + pageTitle ;
	window.open(formURL,"emailpop","height=475,width=350,resizable,scrollbars");
	return false;
}

function openWindow(u,n,o) {window.open(u,n,o);}

function openTarget (form, features, windowName) {
	if (!windowName)
		windowName = 'formTarget' + (new Date().getTime());
		form.target = windowName;
		open ('', windowName, features);
	}

function validatePoll(formObj) {
	var voted = false;
	var pollAnswers = formObj.answer;
	
	for (var i = 0; i < pollAnswers.length; i++) {
		if (pollAnswers[i].checked) {
			voted = true;
			break;
		}
	}

	if (!voted) {
		alert("Please select an answer");
		return false;
	} else {
		return true;
	}
}

//function used for printing a page
function pp()
{
	window.print();
	window.close();
}