function sc_add_serial ()
{
	var req = null; 

	if (window.XMLHttpRequest)
	{
		req = new XMLHttpRequest();
		if (req.overrideMimeType) 
		{
			req.overrideMimeType('text/xml');
		}

	} else if (window.ActiveXObject) {

		try {
			req = new ActiveXObject("Msxml2.XMLHTTP");

		} catch (e) {

			try {
				req = new ActiveXObject("Microsoft.XMLHTTP");

			} catch (e) {}
		}
       	}

	req.onreadystatechange = function()
	{ 
		if(req.readyState == 4)
		{
			if(req.status == 200)
			{
				var new_row = $('serials').insertRow();
				new_row.id = "serial_" + req.responseText + "_container";
				var new_cell = new_row.insertCell();
				new_cell.align  = 'left';
				new_cell.vAlign = 'top';
				new_cell.bgColor = '#ffffff';
				new_cell.innerHTML = $('serial_make').value;
				new_cell = new_row.insertCell();
				new_cell.align  = 'left';
				new_cell.vAlign = 'top';
				new_cell.bgColor = '#ffffff';
				new_cell.innerHTML = $('serial_model').value;
				new_cell = new_row.insertCell();
				new_cell.align  = 'left';
				new_cell.vAlign = 'top';
				new_cell.bgColor = '#ffffff';
				new_cell.innerHTML = $('serial_serial').value;
				new_cell = new_row.insertCell();
				new_cell.align  = 'left';
				new_cell.vAlign = 'top';
				new_cell.bgColor = '#ffffff';
				new_cell.innerHTML = $('serial_fault').innerText;
				new_cell = new_row.insertCell();
				new_cell.align  = 'left';
				new_cell.vAlign = 'top';
				new_cell.bgColor = '#ffffff';
				new_cell.innerHTML = "<input type='hidden' name='serial[]' value='" + req.responseText + "'><a href='javascript:sc_remove_serial(" + req.responseText + ");' class='more'>Remove</a>";

				$('serial_serial').value = '';

			} else	{

				alert("Error: returned status code " + req.status + " " + req.statusText);
			}	
		} 
	}; 

	req.open("GET", "/dealers/sc_new.php?action=create&make=" + $('serial_make').value + "&model=" + $('serial_model').value + "&serial=" + $('serial_serial').value + "&fault=" + $('serial_fault').innerText, true); 
	req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded"); 
	req.send(null);
}

function sc_remove_serial ( id )
{
	var req = null; 

	if (window.XMLHttpRequest)
	{
		req = new XMLHttpRequest();
		if (req.overrideMimeType) 
		{
			req.overrideMimeType('text/xml');
		}

	} else if (window.ActiveXObject) {

		try {
			req = new ActiveXObject("Msxml2.XMLHTTP");

		} catch (e) {

			try {
				req = new ActiveXObject("Microsoft.XMLHTTP");

			} catch (e) {}
		}
       	}

	req.onreadystatechange = function()
	{ 
		if(req.readyState == 4)
		{
			if(req.status == 200)
			{
				$('serial_' + id + '_container').style.display = 'none';

			} else	{

				alert("Error: returned status code " + req.status + " " + req.statusText);
			}	
		} 
	}; 

	req.open("GET", "/dealers/sc_new.php?action=delete&id=" + id, true); 
	req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded"); 
	req.send(null);
}