function em(coded, text) {
	cipher = "aZbYcXdWeVfUgThSiRjQkPlOmNnMoLpKqJrIsHtGuFvEwDxCyBzA1234567890"
	shift=coded.length
	link=""
	for (i=0; i<coded.length; i++)
		{
		if (cipher.indexOf(coded.charAt(i))==-1)
			{
			ltr=coded.charAt(i)
			link+=(ltr)
			}
		else 
			{
			ltr = (cipher.indexOf(coded.charAt(i))-shift+cipher.length) % cipher.length
			link+=(cipher.charAt(ltr))
			}				
    	}
	if (text == null) text = link;
	document.write("<a href='mailto:"+link+"'>"+text+"</a>")
}