// JavaScript Document
function openContent(elm)   {
    var obj = document.getElementById(elm);
    if(obj.style.display == 'none' || obj.style.display == ''){
        obj.style.display = "block";
        document.getElementById(elm+"_link").className = 'open';
    }else{
		obj.style.display = 'none';        
		document.getElementById(elm+"_link").className = 'closed';
    }
}