function validateDate() {

	theday = parseInt(document.getElementById('book-date-day').value);
	themonthyear = document.getElementById('book-month-year').value;
	tmy = themonthyear.split(',');
	themonth = parseInt(tmy[0]);
	theyear = parseInt(tmy[1]);

	var isLeap = new Date(theyear,1,29).getDate() == 29;

	possdays = "0,31,28,31,30,31,30,31,31,30,31,30,31".split(',');
	if (isLeap) {
		possdays[2] = 29;
	}
	
	if (theday<=possdays[themonth]) {
		return true;
	}else{
		alert("You have selected an invalid date.");
		return false;
	}
}


function checkEmail(strng) {
	var error = "";
	var emailFilter=/^.+@.+\..{2,6}$/;
	if (!(emailFilter.test(strng))) {
		return false;
	}
	var illegalChars= /[\(\)\<\>\,\;\:\\\/\"\[\] ']/
	if (strng.match(illegalChars)) {
		return false;
	}
	return true;
}

function formVal(thefields,emailfields) {
	thereturn = true;
	if (thefields!='') {
		fparts = thefields.split(",");
		for (i = 0; i < fparts.length; i++) {
			if (document.getElementById(fparts[i]).value=='') {
				document.getElementById(fparts[i]).style.background='#ff0000';
				thereturn = false;
			}else{
				document.getElementById(fparts[i]).style.background='#ffffff';
			}
		}
	}
	if (emailfields!='') {
		fparts = emailfields.split(",");
		for (i = 0; i < fparts.length; i++) {
			if (!checkEmail(document.getElementById(fparts[i]).value)) {
				document.getElementById(fparts[i]).style.background='#ff0000';
				thereturn = false;
			}else{
				document.getElementById(fparts[i]).style.background='#ffffff';
			}
		}
	}
	
	if (thereturn==false) { alert('You must complete all required fields'); }
	return thereturn;
}

function externalLinks() { 

// hack the email replacer in here //
if (document.getElementById('emailaddress')) {
	document.getElementById('emailaddress').innerHTML='<a href="mailto:info@bamburgh-cottages.co.uk">info@bamburgh-cottages.co.uk</a>';
}
// end hack //



 if (!document.getElementsByTagName) return; 
 var anchors = document.getElementsByTagName("a"); 
 for (var i=0; i<anchors.length; i++) { 
   var anchor = anchors[i]; 
   if (anchor.getAttribute("href") && 
       anchor.getAttribute("rel") == "external") 
     anchor.target = "_blank"; 
 	} 
} 

try {
  document.execCommand("BackgroundImageCache", false, true);
} catch(err) {}

window.onload = externalLinks;