function CallNumberLine(title, step_range, start_range, type, lines)
{ 
//Convert *'s in ranges to colons
	step_range = step_range.replace("*",":");
	start_range = start_range.replace("*", ":");	
//Convert spaces to + to ensure compliance
	step_range = step_range.replace(" ","+");
	start_range = start_range.replace(" ", "+");	
//URL encode strings
	title=escape(title);
	step_range = escape(step_range);
	start_range = escape(start_range);
//Call worksheet
	window.location='your_worksheet.php?worksheet=number_lines&WorksheetTitle='+title+'&QuestionCount='+lines+'&Step='+step_range+
		'&Start='+start_range+'&Length=8%3A12&Hide=40%3A65&Type='+type; 
}