function Show_Menu(pOpenMenu) {
  var objSubMenu1 = window.document.getElementById('submenu1');
  var objSubMenu2 = window.document.getElementById('submenu2');
  var objSubMenu3 = window.document.getElementById('submenu3');
  var objSubMenu4 = window.document.getElementById('submenu4');
  var objSubMenu5 = window.document.getElementById('submenu5');
  
  switch (pOpenMenu) {
    case 'submenu1': {
      if (objSubMenu1.style.display == 'block'){
		objSubMenu1.style.display = 'none';
		objSubMenu2.style.display = 'none';
		objSubMenu3.style.display = 'none';
		objSubMenu4.style.display = 'none';
		objSubMenu5.style.display = 'none';
	  }else{
		objSubMenu1.style.display = 'block';
		objSubMenu2.style.display = 'none';
		objSubMenu3.style.display = 'none';
		objSubMenu4.style.display = 'none';
		objSubMenu5.style.display = 'none';
	  }
	  break;
	}
	case 'submenu2':{
	  if (objSubMenu2.style.display == 'block'){
		objSubMenu1.style.display = 'none';
		objSubMenu2.style.display = 'none';
		objSubMenu3.style.display = 'none';
		objSubMenu4.style.display = 'none';
		objSubMenu5.style.display = 'none';
	  }else{
		objSubMenu2.style.display = 'block';
		objSubMenu1.style.display = 'none';
		objSubMenu3.style.display = 'none';
		objSubMenu4.style.display = 'none';
		objSubMenu5.style.display = 'none';
	  }
	  break;
	}
	case 'submenu3':{
	  if (objSubMenu3.style.display == 'block'){
		objSubMenu1.style.display = 'none';
		objSubMenu2.style.display = 'none';
		objSubMenu3.style.display = 'none';
		objSubMenu4.style.display = 'none';
		objSubMenu5.style.display = 'none';
	  }else{
		objSubMenu3.style.display = 'block';
		objSubMenu1.style.display = 'none';
		objSubMenu2.style.display = 'none';
		objSubMenu4.style.display = 'none';
		objSubMenu5.style.display = 'none';
	  }
	  break;
	}
	case 'submenu4':{
	  if (objSubMenu4.style.display == 'block'){
		objSubMenu1.style.display = 'none';
		objSubMenu2.style.display = 'none';
		objSubMenu3.style.display = 'none';
		objSubMenu4.style.display = 'none';
		objSubMenu5.style.display = 'none';
	  }else{
		objSubMenu4.style.display = 'block';
		objSubMenu1.style.display = 'none';
		objSubMenu2.style.display = 'none';
		objSubMenu3.style.display = 'none';
		objSubMenu5.style.display = 'none';
	  }
	  break;
	}
	case 'submenu5':{
	  if (objSubMenu5.style.display == 'block'){
		objSubMenu1.style.display = 'none';
		objSubMenu2.style.display = 'none';
		objSubMenu3.style.display = 'none';
		objSubMenu4.style.display = 'none';
		objSubMenu5.style.display = 'none';
	  }else{
		objSubMenu5.style.display = 'block';
		objSubMenu1.style.display = 'none';
		objSubMenu2.style.display = 'none';
		objSubMenu3.style.display = 'none';
		objSubMenu4.style.display = 'none';
	  }
	  break;
	}
	default:{
	  break;
	}
  } 
}