function show(arg)
{
if (document.getElementById(arg).style.display == "none")
	{document.getElementById(arg).style.display = "block";}
else
	{document.getElementById(arg).style.display = "none";}

if (arg == "all_comments")
	{
	if (document.getElementById('all_comments').style.display == "block")
		{document.getElementById('show_comments').style.display = "none";}
	else
		{document.getElementById('show_comments').style.display = "inline";}
	}
}

function mail(u, s, d, txt)
{
var l="ilto";
	if (txt == "null")
		{document.write("<a"+" href="+"ma"+l+":"+u+"&#64;"+s+ "." +d+">"+u+"&#64;"+s+ "." +d+"</a>");}
	else
		{document.write("<a"+" href="+"ma"+l+":"+u+"&#64;"+s+ "." +d+">"+txt+"</a>");}	
};