function active(id)
{
if (tag=document.getElementById('nav.'+id))
{tag.innerHTML=tag.innerHTML.replace(/arrow1\.gif/,"arrow2.gif");tag.className='active';}
if (tag=document.getElementById('nav_submenu.'+id)){tag.className='active';}
id=id.replace(/\.[\w|-]*$/,"");
if (tag=document.getElementById('nav.'+id))
{tag.className='active';tag.innerHTML=tag.innerHTML.replace(/arrow1\.gif/,"arrow2.gif");}
if(tag=document.getElementById('nav_submenu.'+id)){tag.className='active';}
}
function inactive(id)
{
if (tag=document.getElementById('nav.'+id))
{tag.innerHTML=tag.innerHTML.replace(/arrow2\.gif/,"arrow1.gif");tag.className='inactive';}
if (tag=document.getElementById('nav_submenu.'+id)){tag.className='inactive';}
id=id.replace(/\.[\w|-]*$/,"");
if (tag=document.getElementById('nav.'+id))
{tag.className='inactive';tag.innerHTML=tag.innerHTML.replace(/arrow2\.gif/,"arrow1.gif");}
if(tag=document.getElementById('nav_submenu.'+id)){tag.className='inactive';}
}
function toggle(id)
{
tag=document.getElementById('nav.'+id);
tag2=document.getElementById('nav_submenu.'+id);
str=tag.innerHTML;
if(tag.className=='active') 
{tag.className='inactive';tag2.className='inactive';
tag.innerHTML=str.replace(/arrow2\.gif/,"arrow1.gif");} 
else {tag.className='active';tag2.className='active';
tag.innerHTML=str.replace(/arrow1\.gif/,"arrow2.gif");};
}