function openWindow(url, w, h, scrollbars, toolbar, name) {

	// Get available dimensions
	var ah=screen.availHeight;
	var aw=screen.availWidth;

	// Figure top and left (for centering on screen)
	var left=Math.round((aw-w)/2);
	var top=Math.round((ah-h)/2);

	if (scrollbars != 'yes') {
		scrollbars='no';
	}
	
	if (toolbar != 'yes') {
		toolbars='no';
	}
	
	if (!name) {
		name='';
	}
	
	window.open(
		url,
		name,
		'width=' + w  + ', ' +
		'height=' + h  + ', ' + 
		'top=' + top  + ', ' +
		'left=' + left  + ', ' +
		'menubar=no, '  + ', ' +
		'status=no, ' + 
		'location=no, ' + 
		'toolbar=' + toolbar + ', ' + 
		'statusbar=no, ' + 
		'status=no, ' +
		'scrollbars=' + scrollbars + ', ' +
		'resizable=yes'
	);
}