function setLetter(letter,suffix)
{var letter_div=suffix==undefined?"Glossary_show_letter":"Glossary_show_letter"+suffix;var ul=document.getElementById(letter_div);var a=document.getElementById(letter_div+"_"+letter);for(var i=0;i<ul.childNodes.length;i++)
{if(ul.childNodes[i].nodeName=="LI")
{for(var j=0;j<ul.childNodes[i].childNodes.length;j++)
{if(ul.childNodes[i].childNodes[j].nodeName=="A")
{ul.childNodes[i].childNodes[j].className="";}}}}
a.className="on";if(suffix==undefined)
{setLetter(letter,"_head");}
if(suffix=="_head")
{return true;}
var div=document.getElementById("Glossary_show_letter_divs");for(var i=0;i<div.childNodes.length;i++)
{if(div.childNodes[i].nodeName=="DIV")
{div.childNodes[i].style.display="none";}}
var sdiv=document.getElementById("Glossary_show_letter_div_"+letter);sdiv.style.display="block";}