function tab_on(tabname)
	{
		document.getElementById(tabname).innerHTML='<div style="position:absolute; margin-top:-22px;"><img src="images/frognav.png" width="38" height="15"></div>';
		
	}
	
function tab_off(tabname)
	{
		document.getElementById(tabname).innerHTML='<div style="position:absolute; margin-top:-22px;"><img src="images/nofrog.png" width="38" height="15"></div>';
		
	}	
	
function tab_on2(tabname)
	{
		document.getElementById(tabname).innerHTML='<div style="position:absolute; margin-top:8px;"><img src="images/frognav2.png" width="38" height="15"></div>';
		
	}
	
function tab_off2(tabname)
	{
		document.getElementById(tabname).innerHTML='<div style="position:absolute; margin-top:8px;"><img src="images/nofrog.png" width="38" height="15"></div>';
		
	}		
	
function office_on(idname)
{
document.getElementById(idname).style.visibility='visible';
}

function office_off(idname)
{
document.getElementById(idname).style.visibility='hidden';
}