function sales_ps_choose_item ( part , quantity , order_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)
			{
				var description = req.responseText;
				$('description').innerText = description;
				$('required').value = quantity;
				$('shipped').value = '0';
				$('bo').value = '0';

			} else	{

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

	req.open("GET", "/logistics/sales_ps.php?action=get&order_id=" + order_id + "&part=" + part, true); 
	req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded"); 
	req.send(null);
}

function sales_ps_add_item ( 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)
			{
				var new_id = req.responseText;
				var new_row = $('items_container').insertRow();
				new_row.id = "ps_item_" + new_id;
				var new_cell = new_row.insertCell();
				new_cell.align  = 'left';
				new_cell.vAlign = 'top';
				new_cell.innerHTML = $('new_item').options($('new_item').selectedIndex).id;
				new_cell = new_row.insertCell();
				new_cell.align  = 'left';
				new_cell.vAlign = 'top';
				new_cell.innerHTML = $('description').innerText;
				new_cell = new_row.insertCell();
				new_cell.align  = 'right';
				new_cell.vAlign = 'top';
				new_cell.innerHTML = $('required').value;
				new_cell = new_row.insertCell();
				new_cell.align  = 'right';
				new_cell.vAlign = 'top';
				new_cell.innerHTML = $('shipped').value;
				new_cell = new_row.insertCell();
				new_cell.align  = 'right';
				new_cell.vAlign = 'top';
				new_cell.innerHTML = $('bo').value;
				new_cell = new_row.insertCell();
				new_cell.align  = 'left';
				new_cell.vAlign = 'top';
				new_cell.innerHTML = "<a class='more' href='javascript:sales_ps_remove_item(" + new_id + ");'>Remove</a>";

			} else	{

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

	req.open("GET", "/logistics/sales_ps.php?action=create&id=" + id + "&part=" + $('new_item').options($('new_item').selectedIndex).id + "&required=" + $('required').value + "&shipped=" + $('shipped').value + "&bo=" + $('bo').value + "&description=" + $('description').innerText, true); 
	req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded"); 
	req.send(null);
}

function sales_ps_remove_item ( 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)
			{
				$('ps_item_' + id).style.display = 'none';

			} else	{

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

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