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

function checkform(thisform)
{

with (thisform)
	{
	if (validate_required(name,"Please enter your name!")==false)
	  {name.focus();return false}
	if (validate_required(email,"Please enter your email address!")==false)
	  {email.focus();return false}
	if (validate_required(phone,"Please enter a contact number")==false)
	  {phone.focus();return false}
	if (validate_required(postcode,"Please enter your postcode")==false)
	  {postcode.focus();return false}
	if (validate_required(details,"Please enter brief details of your enquiry")==false)
	  {details.focus();return false}
	  if (test.value != "4hb82f")
		{
		alert("Enter code")
		test.value =""
		test.focus();return false
		}
	}
}

//=============================================================================
function clear_background(name)
{
document.getElementById(name).style.backgroundImage="url()"
}
//===================================================================================
function set_background(name)
{
txt=document.getElementById(name).value

	if (txt=='')
	{
		
		if (document.getElementById(name).name=='name')
		{
		document.getElementById(name).style.backgroundImage="url(/images/your_name.png)"
		}
		if (document.getElementById(name).name=='email')
		{
		document.getElementById(name).style.backgroundImage="url(/images/your_email.png)"
		}
		if (document.getElementById(name).name=='phone')
		{
		document.getElementById(name).style.backgroundImage="url(/images/your_phone.png)"
		}
		if (document.getElementById(name).name=='postcode')
		{
		document.getElementById(name).style.backgroundImage="url(/images/your_postcode.png)"
		}
		if (document.getElementById(name).name=='details')
		{
		document.getElementById(name).style.backgroundImage="url(/images/your_details.png)"
		}
	}
	else
	{
	document.getElementById(name).value=txt
	}
}
//===================================================================================
function set_form(Btn)
{
window.scrollTo(0,0) 
document.getElementById(Btn+'name').style.backgroundImage="url(/images/your_name.png)"
document.getElementById(Btn+'email').style.backgroundImage="url(/images/your_email.png)"
document.getElementById(Btn+'phone').style.backgroundImage="url(/images/your_phone.png)"
document.getElementById(Btn+'postcode').style.backgroundImage="url(/images/your_postcode.png)"
document.getElementById(Btn+'details').style.backgroundImage="url(/images/your_details.png)"

document.getElementById(Btn+'name').value=""
document.getElementById(Btn+'email').value=""
document.getElementById(Btn+'phone').value=""
document.getElementById(Btn+'postcode').value=""
document.getElementById(Btn+'details').value=""
document.getElementById(Btn+'name').focus()
}
//===================================================================================
function upperCase(x)
{
var y=document.getElementById(x).value
document.getElementById(x).value=y.toUpperCase()
}
//==========================================================

function open_lightbox(Btn)
{
document.getElementById(Btn).style.display='block';
document.getElementById('fade').style.display='block';
set_form(Btn)
}
function close_lightbox(Btn)
{
document.getElementById(Btn).style.display='none';
document.getElementById('fade').style.display='none'
}