function openwindow()
{
window.open('/Website/Weddings.nsf/Menu?OpenPage', 'AshridgeMenu', 'toolbar=no,location=no,status=no,menubar=no,scrollbars=no,resizable=yes,width=600,height=400');
}

function validate_required(field,alerttxt)
{
	with (field)
	{
	if (value==null||value=="")
  		{alert(alerttxt);return false}
	else {return true}
	}
}

function validate_email(field,alerttxt)
{
	with (field)
	{
	apos=value.indexOf("@")
	dotpos=value.lastIndexOf(".")
	if (apos<1||dotpos-apos<2) 
 		{alert(alerttxt);return false}
	else {return true}
	}
}

function validate_selection(field,alerttxt)
{
	with (field)
	{
		if ( selectedIndex == 0 )  {  alert(alerttxt);return false  }	
		else {return true}
	}
}


function validate_form(thisform)
{
with (thisform)
	{
		if (validate_required(FullName,"Full Name must be filled out!")==false)
  			{FullName.focus();return false;}
 		if (validate_required(Address,"Address must be filled out!")==false)
  			{Address.focus();return false;}
 	 	if (validate_required(Postcode,"Postcode must be filled out!")==false)
  			{Postcode.focus();return false;}
  		if (validate_required(Telephone,"Telephone must be filled out!")==false)
  			{Telephone.focus();return false;}
  		if (validate_email(Email,"Email must be filled out!")==false)
  			{Telephone.focus();return false;}
  		if (validate_selection(AreYou,"Are You.. must be filled out!")==false)
  			{AreYou.focus();return false;}
  		if (validate_required(Guests,"Number of guests must be filled out!")==false)
  			{Telephone.focus();return false;}
  		if (validate_selection(Referer,"Referer must be filled out!")==false)
  			{Referer.focus();return false;}
  		if (validate_required(RefererOther,"Please supply details")==false)
  			{RefererOther.focus();return false;}
	}
}