var ie=document.all ? 1 : 0; 
var ns6=document.getElementById&&!document.all ? 1 : 0; 
var opera=window.opera ? 1 : 0; 


function openchild(childObj, parentObj) { 
    var parent=""; 
    var child=""; 
    var sw="./img/arrowinbox_on.gif"; 
    var hd="./img/arrowinbox.gif"; 
    if (ie || ns6 || opera) { 
        child=ns6 ? document.getElementById(childObj).style : document.all(childObj).style; 
        parent=ns6 ? document.getElementById(parentObj).style : document.all(parentObj).style; 
        if (child.display=="none") { 
            child.display="block"; 
        } else { 
            child.display="none"; 
            parent.color="black"; 
        } 
    } 
}