// JavaScript Document
function get_sizes()
	{
		var win_w, win_h, scr_w, scr_h, res, inr;
		if(document.body.clientWidth)
		{
			win_w = document.body.clientWidth;
			win_h = document.body.clientHeight;
		}
		else if(window.innerWidth)
		{ win_W = innerWidth; win_h = innerHeight; }
		
		scr_w = screen.width; scr_h = screen.height;
		
		res = "Resolution: " +scr_w+ " x " +scr_h;
		inr = "Inner window: " +win_w+ " x " +win_h;
		if(scr_w <600 ) alert( "Please increase the screen size to view this page");
	}