var newWindow;

function subWindow() {
    if (arguments.length < 1) {
        alert("function subWindow called with " + arguments.length +
              " arguments, but it expects at least 1 arguments.");
        return null;
    }
    var heightval = arguments[1] != null ? arguments[1] : 480;
    var widthval = arguments[2] != null ? arguments[2] : 640;
    var filename = arguments[3] != null ? arguments[3] : "";
	var scrollbars = arguments[4] != null ? arguments[4] : 1;
	var LeftPosition = (screen.width) ? (screen.width-widthval)/2 : 0;
    var TopPosition = (screen.height) ? (screen.height-heightval)/2 : 0;
	
    var dimensions = "directory=0,height="+heightval+",width="+widthval+
                     ",left="+LeftPosition+",top="+TopPosition+",resizable=1,statusbar=0,hotkeys=0,menubar=0,scrollbars="+scrollbars+",status=0,toolbar=0";

    var newWindow = window.open(filename,arguments[0],dimensions);
	{newWindow.focus()}

    if (!filename) {
        newWindow.document.write("<title>B&H Photo-Video Pro Audio, The world's largest dealer of imaging equipment at discount prices</title>")
        newWindow.document.write("<center><font size=4 color='red'>Loading, please wait...</font></center>")
    }
    return;
}