// Output a HTML image that says wether the salesline is open or not
function Salesline() {
    var isOpen = false;
    var todayDate = new Date();

    // Prepare open and closing Date object
    var OpenDateObj = new Date(todayDate);
    OpenDateObj.setHours(hourOpen);
    OpenDateObj.setMinutes(minOpen);

    var CloseDateObj = new Date(todayDate);
    CloseDateObj.setHours(hourClose);
    CloseDateObj.setMinutes(minClose);

    // Check if current time is between open and closing time
    if (todayDate.getTime() >= OpenDateObj.getTime() &&
			todayDate.getTime() < CloseDateObj.getTime()) {
        isOpen = true;
    }

    // write out the image for sales line
    if (isOpen) {
        outputStr = "<img src='/images/sales_line_" + hourOpen;

        if (minOpen > 0) outputStr += "_" + minOpen;
        outputStr += "_" + hourClose;

        if (minClose > 0) outputStr += "_" + minClose;
        outputStr += ".gif' />";

        document.writeln(outputStr);
    }
}

// Call an instance of Salesline
Salesline();