function getPos(eElement)

{
    var nLeftPos = eElement.offsetLeft;          
    var eParElement = eElement.offsetParent;     
    while (eParElement != null)
    {                                            
        nLeftPos += eParElement.offsetLeft;      
        eParElement = eParElement.offsetParent;  
    }

    drbij = nLeftPos;                            

}

function showmenu(menu){
getPos(menu);

nx=drbij
nx=nx-10
ny=document.getElementById( 'gt' ).offsetTop+158;
ny=ny

schaduw="sub"+menu.id+"shadow"
geenschaduw="sub"+menu.id

if (document.getElementById( geenschaduw ).innerHTML != "")
	{
	document.getElementById( geenschaduw ).style.left=nx;
	document.getElementById( schaduw ).style.left=nx+5;
	document.getElementById( geenschaduw ).style.top=ny;
	document.getElementById( schaduw ).style.top=ny+5;
	document.getElementById( schaduw ).style.height=document.getElementById( geenschaduw ).offsetHeight
	document.getElementById( schaduw ).style.visibility='visible';
	document.getElementById( geenschaduw ).style.visibility='visible';
	}
}

function showsubmenu(menu){
hideSub()
getPos(menu);

nx=drbij
nx=nx-10
//ny=document.getElementById( 'gt' ).offsetTop+158;

varobj='rij'+menu.id;

ny=document.getElementById(varobj).offsetTop+158;


ny=ny

subschaduw="subsub"+menu.id+"shadow"
subgeenschaduw="subsub"+menu.id

document.getElementById( subgeenschaduw ).style.left=nx;
document.getElementById( subschaduw ).style.left=nx+5;
document.getElementById( subgeenschaduw ).style.top=ny+5;
document.getElementById( subschaduw ).style.top=ny+10;
document.getElementById( subschaduw ).style.height=document.getElementById( subgeenschaduw ).offsetHeight
document.getElementById( subschaduw ).style.visibility='visible';
document.getElementById( subgeenschaduw ).style.visibility='visible';

}
function hideall()
{

document.getElementById( 'sub1' ).style.visibility='hidden';
document.getElementById( 'sub1shadow' ).style.visibility='hidden';


document.getElementById( 'sub2' ).style.visibility='hidden';
document.getElementById( 'sub2shadow' ).style.visibility='hidden';


document.getElementById( 'sub3' ).style.visibility='hidden';
document.getElementById( 'sub3shadow' ).style.visibility='hidden';


document.getElementById( 'sub4' ).style.visibility='hidden';
document.getElementById( 'sub4shadow' ).style.visibility='hidden';


document.getElementById( 'sub6' ).style.visibility='hidden';
document.getElementById( 'sub6shadow' ).style.visibility='hidden';


document.getElementById( 'sub7' ).style.visibility='hidden';
document.getElementById( 'sub7shadow' ).style.visibility='hidden';


document.getElementById( 'sub8' ).style.visibility='hidden';
document.getElementById( 'sub8shadow' ).style.visibility='hidden';


hideSub()
}

function hideSub()
{

				document.getElementById( 'subsub7' ).style.visibility='hidden';
				document.getElementById( 'subsub7shadow' ).style.visibility='hidden';			
				
				document.getElementById( 'subsub7' ).style.visibility='hidden';
				document.getElementById( 'subsub7shadow' ).style.visibility='hidden';			
				
				document.getElementById( 'subsub11' ).style.visibility='hidden';
				document.getElementById( 'subsub11shadow' ).style.visibility='hidden';			
				
				document.getElementById( 'subsub7' ).style.visibility='hidden';
				document.getElementById( 'subsub7shadow' ).style.visibility='hidden';			
				
				document.getElementById( 'subsub7' ).style.visibility='hidden';
				document.getElementById( 'subsub7shadow' ).style.visibility='hidden';			
				
				document.getElementById( 'subsub7' ).style.visibility='hidden';
				document.getElementById( 'subsub7shadow' ).style.visibility='hidden';			
				

}