function expand(s)
{ 
var td = s; 
var d = td.getElementsByTagName("div").item(0); 
td.className = "menuHover"; d.className = "menuHover"; 
}

function collapse(s) 
{ 
var td = s; 
var d = td.getElementsByTagName("div").item(0); 
td.className = "menuNormal"; d.className = "menuNormal"; 
}