// JavaScript Document
function cell_over(cell, classname, submenu) {
    if (document.all || document.getElementById) {
        cell.classBackup = cell.className;
        cell.className   = classname;
    }
	document.getElementById(submenu).style.visibility = 'visible'; 
}
function cell_over2(cell1, cell2, classname, submenu) {
    if (document.all || document.getElementById) {
        cell1.classBackup = cell1.className;
        cell1.className   = classname;
		cell2.classBackup = cell2.className;
        cell2.className   = classname;
    }
	document.getElementById(submenu).style.visibility = 'visible'; 
}
function cell_out(cell)
{
    if (document.all || document.getElementById) {
        cell.className   = cell.classBackup;
    }
	document.getElementById('sub1').style.visibility = 'hidden';
	document.getElementById('sub2').style.visibility = 'hidden';
	document.getElementById('sub3').style.visibility = 'hidden';
	document.getElementById('sub4').style.visibility = 'hidden';
	document.getElementById('sub5').style.visibility = 'hidden';
}
function menu_view(menusub) {
	document.getElementById('sub1').style.visibility = 'visible';  
}