js 游览器log的记录

function log()
{
	try
	{
		console.log.apply(console,arguments);
	}
	catch(e)
	{
		try
		{
			opera.postError.apply(opera,arguments);
		}
		catch(e)
		{
			alert(Array.prototype.join.call(arguments," "));
		}
	}
}