function changebg(element)
{
   if(element.style.backgroundImage == "url(images/thumb.jpg)" || element.style.backgroundImage == null || element.style.backgroundImage == "")
	{
		element.style.backgroundImage="url(images/thumbOn.jpg)";
	}
	else
	{
		element.style.backgroundImage="url(images/thumb.jpg)";
	}
}
function changeImg(element,image)
{
	var theElement = element;
	var theImage = image;
	theElement.src = theImage;	
}
function changeSubMenu(element)
{
	var theElement = element;
	
	theElement.style.backgroundColor = "#fecdf8";
	theElement.childNodes[0].style.backgroundImage = "url(images/subMenuRightOn.jpg)";
}
function changeSubMenu2(element)
{
	var theElement = element;
	
	theElement.style.backgroundColor = "#ffe8fc";
	theElement.childNodes[0].style.backgroundImage = "url(images/subMenuRight.jpg)";
}
function validate_required(field,validator)
{
	var valid = document.getElementById(validator);
	with (field)
  	{
  		if (value==null||value=="")
		{
			valid.style.visibility = "visible";
			valid.innerHTML = " *";
			return false;
		}
  		else
		{
			valid.style.visibility = "hidden";
			valid.innerHTML = "";
			return true;
		}
  	}
}
function validate_similar(field,field2,validator)
{
	var valid = document.getElementById(validator);
	var pass = document.getElementById(field);
	var pass2 = document.getElementById(field2);
	if(pass.value != pass2.value)
  	{
		valid.style.visibility = "visible";
		valid.innerHTML = " * Check passwords";
		return false;
  	}
	else
	{
		valid.style.visibility = "hidden";
		valid.innerHTML = "";
		return true;
	}
}
function validate_email(field,validator)
{
	var valid = document.getElementById(validator);
	with (field)
  	{
	  	apos=value.indexOf("@");
	  	dotpos=value.lastIndexOf(".");
  		if (apos<1||dotpos-apos<2)
    	{
			valid.style.visibility = "visible";
			valid.innerHTML = " * Invalid Email";
			return false;
		}
  		else 
		{
			valid.style.visibility = "hidden";
			valid.innerHTML = "";
			return true;
		}
  	}
}
function validateRegister(thisform)
{
	var valid = true;
	
	with (thisform)
  	{
  	    if (validate_required(pass1,"pass1valid")==false)
  		{
	  		pass1.focus();
			valid = false;
  		}
  		if (validate_similar('pass1','pass2',"pass2valid")==false)
  		{
	  		pass2.focus();
			valid = false;
  		}
		if (validate_required(user,"uservalid")==false)
  		{
	  		user.focus();
			valid = false;
  		}
		if (validate_required(email,"emailvalid")==false)
  		{
	  		email.focus();
			valid = false;
  		}
  		else if(validate_email(email,"emailvalid")==false)
		{
			email.focus();
			valid = false;
		}
		if (validate_required(postcode,"postcodevalid")==false)
  		{
	  		postcode.focus();
			valid = false;
  		}
		if (validate_required(town,"townvalid")==false)
  		{
	  		town.focus();
			valid = false;
  		}
		if (validate_required(address,"addressvalid")==false)
  		{
	  		address.focus();
			valid = false;
  		}
		if (validate_required(mob,"mobvalid")==false)
  		{
			mob.focus();
			valid = false;
  		}
		if (validate_required(tel,"telvalid")==false)
  		{
			tel.focus();
			valid = false;
  		}
		if (validate_required(tel,"telvalid")==false)
  		{
	  		tel.focus();
			valid = false;
  		}
		if (validate_required(surname,"surnamevalid")==false)
  		{
	  		surname.focus();
			valid = false;
  		}
  		if (validate_required(name,"namevalid")==false)
  		{
	  		name.focus();
			valid = false;
  		}
	}
	return valid;
}
function validateContact(thisform)
{
	var valid = true;
	
	with (thisform)
  	{
		if (validate_required(message,"messagevalid")==false)
  		{
	  		message.focus();
			valid = false;
  		}
		if (validate_required(mail,"mailvalid")==false)
  		{
	  		mail.focus();
			valid = false;
  		}
		else if(validate_email(mail,"mailvalid")==false)
		{
			mail.focus();
			valid = false;
		}
  		if (validate_required(name,"namevalid")==false)
  		{
	  		name.focus();
			valid = false;
  		}	
	}
	return valid;
}