var currentPopup = null;

function openSample(sCategory, iItem)
	{
	var l = openSample.arguments.length;
	var w = "";
	var h = "";

	var url = 'sample.php3?ITEMCAT=' + escape(sCategory) + '&ITEMNBR=' + escape(iItem);
	
	var features = "resizable,width=380,height=300,";

	for (i=2; i<l; i++)
		{
		var param = openSample.arguments[i];
		if ( (parseInt(param) == 0) || (isNaN(parseInt(param))) )
			{
			features += param + ',';
			}
		else
			{
			(w == "") ? w = "width=" + param + "," :
			h = "height=" + param;
			}
		}

	features += w + h;
	var code = "currentPopup = window.open(url, 'sample'";
//	if (l > 2)
		code += ", '" + features;
	code += "')";
	eval(code);
	}

function doOnFocus()
	{
	if (currentPopup != null)
		{
		if (!currentPopup.closed)
			currentPopup.close();

		currentPopup = null;
		}
	}