use_header = 1;

function swapHeaderOver(obj)
{
	if (use_header==1)
	{
		if (obj=="header_06")
		{
			eval("document.getElementById(obj).style.backgroundImage = 'url(\"images/header/"+obj+"_over.gif\")';");
		}
		else
		{
		eval("document.getElementById(obj).style.backgroundImage = 'url(\"images/header/"+obj+"_over.jpg\")';");
		}
		document.getElementById(obj).style.cursor = 'pointer';

	}
	
}

function swapHeaderOut(obj)
{
	if (use_header==1)
	{
		eval("document.getElementById(obj).style.backgroundImage = 'url(\"images/header/"+obj+".jpg\")';");
		document.getElementById(obj).style.cursor = 'default';
	}
}

function swapPointer(obj)
{
	if (use_header==1)
	{
		if (obj=='left_in')
		{
			document.getElementById('header_07').style.backgroundImage = 'url(\"images/header/header_07_left.jpg\")';
		}
		else if (obj=='left_out')
		{
			document.getElementById('header_07').style.backgroundImage = 'url(\"images/header/header_07.jpg\")';
		}
		else if (obj=='right_in')
		{
			document.getElementById('header_07').style.backgroundImage = 'url(\"images/header/header_07_right.jpg\")';
		}
		else if (obj=='right_out')
		{
			document.getElementById('header_07').style.backgroundImage = 'url(\"images/header/header_07.jpg\")';
		}
	}		
}

function swapHeaderOver2(obj)
{
	if (use_header==1)
	{
		eval("document.getElementById(obj).style.backgroundImage = 'url(\"images/header/"+obj+"_over.jpg\")';");
	}
}

function swapHeaderOut2(obj)
{
	if (use_header==1)
	{
		eval("document.getElementById(obj).style.backgroundImage = 'url(\"images/header/"+obj+".jpg\")';");
	}
}



function validate_cart()
{
	msg = '';
	complete = true;

	postage = document.getElementById('lstPostage').value
	if ((postage=='') || (postage=='none'))
	{
		msg = msg + 'Please select your postage requirement\n';
		complete = false;
	}

	name = document.getElementById('txtName').value
	if (name=='')
	{
		msg = msg + 'Please fill in your Name(Contact Person)\n';
		complete = false;
	}

	number = document.getElementById('txtNumber').value;
	if (number=='')
	{
		complete = false;
		msg = msg + 'Please fill in your Contact Number\n';
	}

	email = document.getElementById('txtEmail').value;
	if (email=='')
	{
		complete = false;
		msg = msg + 'Please fill in your Email\n';
	}

	address = document.getElementById('txtAddress').value;
	if (address=='')
	{
		complete = false;
		msg = msg + 'Please fill in your Address\n';
	}

	postalcode = document.getElementById('txtPostalCode').value;
	if (postalcode=='')
	{
		complete = false;
		msg = msg + 'Please fill in your Postal Code\n';
	}

	country = document.getElementById('lstCountry').value;
	if (country=='')
	{
		complete = false;
		msg = msg + 'Please select your Country\n';
	}

	if (!complete)
	{
		//event.returnValue=false;
		alert(msg);
		return false;
	}
	else
	return true;
}



function checkCurrency(price)
{
	price = Math.round(price*100.0) / 100.0;
	price = price.toString();
	len = price.length;
	pos_dot = price.indexOf('.');
	msg = "len: "+len+"\npos_dot:"+pos_dot;
	//alert(msg);
	if (pos_dot==-1)
	{
		price = price+".00";
	}
	else if ((len-pos_dot)==1)
	{
		price = price+"00";
	}
	else if ((len-pos_dot)==2)
	{
		price = price+"0";
	}
	else if ((pos_dot+2)>len)
	{
		alert(msg);
	}
	
	return price;
}

function updatePostage(obj)
{
	var subtotal = document.getElementById("txtSubTotal").value;
	var postage = obj.value;
	if (postage!='none')
	{
		document.getElementById("txtPostage").value = "£"+obj.value;
		var tot = parseFloat(subtotal) + parseFloat(postage);
		tot = checkCurrency(tot);
		document.getElementById("txtTotal").value = "£"+tot;
		$('AMOUNT').value = tot.replace(".", "");
	}
	secret = "HqC33bdtKB";
	tmp = $('TIMESTAMP').value+"."+$('MERCHANT_ID').value+"."+$('ORDER_ID').value+"."+$('AMOUNT').value+"."+$('CURRENCY').value;
	//tmp = $('TIMESTAMP').value+"."+$('MERCHANT_ID').value+"."+$('ORDER_ID').value+"."+"500"+"."+$('CURRENCY').value;
	//alert(tmp);
	md5hash = MD5(tmp)+"."+secret;
	md5_hash = MD5(md5hash);
	
	$("MD5HASH").value = md5_hash;

}


function overTrolley(obj, number)
{
	eval("obj.src = \"images/add"+number+"_over.jpg\"");
}

function outTrolley(obj, number)
{
	eval("obj.src = \"images/add"+number+".jpg\"");
}