function MM_findObj(n, d) { //v3.0
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document); return x;
}
function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
 var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
   var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
   if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function preLoader(pre) {
  MM_preloadImages(
    pre+'base/home.gif',
    pre+'base/lessons.gif',
    pre+'base/programs.gif',
    pre+'base/retreat.gif',

    pre+'base/team.gif',
    pre+'base/schedule.gif',
    pre+'base/prices.gif',
    pre+'base/vouchers.gif',
    pre+'base/accommodation.gif',
    pre+'base/booking.gif',
    pre+'base/contact.gif',

    pre+'base/photos.gif',
    pre+'base/faqs.gif',
    pre+'base/testimonials.gif',
    pre+'base/links.gif',
    pre+'base/sitemap.gif',
    pre+'base/newsletter.gif'
  );
}

function checkEmail(form) {
	if (isBlank(form.email.value) || !isEmailValid(form.email.value) ) {
		alert("Please enter a valid Email Address.\nThe email you have typed in does not appear to be valid.");
		form.email.focus();
		return false;
	}
	return true;
}

function isBlank(fieldValue) {
	var blankSpaces = / /g;
	fieldValue = fieldValue.replace(blankSpaces, "");
	return (fieldValue == "") ? true : false;
}

function isEmailValid(fieldValue) {
	var emailFilter = /^.+@.+\..{2,4}$/;
	var atSignFound = 0;
	for (var i = 0; i <= fieldValue.length; i++)
		if ( fieldValue.charAt(i) == "@" )
			atSignFound++;
	if ( atSignFound > 1 )
		return false;
	else
		return ( emailFilter.test(fieldValue) && !doesEmailHaveInvalidChar(fieldValue) ) ? true : false;
}

function doesEmailHaveInvalidChar(fieldValue) {
	var illegalChars = /[\(\)\<\>\,\;\:\\\/\"\[\] ]/;
	return ( illegalChars.test(fieldValue) ) ? true : false;
}

function putmail(dom, usr, prompt)
{
  document.write('<a href="mailto:' + usr + '@' + dom + '">');
  document.write(prompt);
  document.write('<\/a>\n');
}