//	----------------------------------------------------------  
//  TRACE CODE
//	----------------------------------------------------------

	var winDebug;
    var debug = false;
     
    if (debug) {
    	winDebug = window.open('javascript/debug.htm','debug','width=700,height=700,left=0,top=100,screenX=0,screenY=100'); 
	}

//	---------------------------------------------------------- 
// This function outputs a string to the debug window.
// The string is concatenated to existing window output
// and a date stamp is added. 
//	---------------------------------------------------------- 	 
	 
	function printTrace() {
		if (debug) {
	 		sDebug = funcName(arguments.caller.callee);
	 		if (sDebug.length < 16) sDebug += "\t";
	 		if (sDebug.length < 24) sDebug += "\t";
	 		if (sDebug.length < 32) sDebug += "\t";
	 		var d = new Date();
	 		var t = d.getHours() + ":" + d.getMinutes() + ":" + d.getSeconds() + ":" + d.getMilliseconds();
			winDebug.document.all['txtDebug'].value = winDebug.document.all['txtDebug'].value + sDebug + "\t" + t + "\n";
	 	}
	}
	 
// -------------------------------------------------------------
// This function returns the name of a given function
// It does this by converting the function to a string, 
// then using a regular expression to extract the function
// name from  the resulting code.
// -------------------------------------------------------------

	function funcName(f) {
	 	var s = f.toString().match(/function (\w*)/)[1];
	 	if ((s == null) || (s.length == 0)) return "anonymous";
	 	return s;
	}
	 
// -------------------------------------------------------------
// This function returns a string that contains a stack trace
// -------------------------------------------------------------
	 
	function stackTrace() {
		var s = "";
		// Loop through the stack of functions, using the caller
		// property of one arguments object to refer to the next
		// arguments object on the stack
		for (var a = arguments.caller; a != null; a = a.caller) {
			// Add the name of the current function to the
			// return value
			s += funcName(a.callee) + "\n";
		}
		return s;
	}
	
// -------------------------------------------------------------