//function setsubmenu(k){
//	document.getElementById('leftmenu'+k).style.display='none';
//}
function opensubmenu(channelId){
  var i;
  var channelItem = document.getElementById('SideBar').getElementsByTagName("H2");
	for(i=1; i <=(channelItem.length-1); i++)
	{	
		if (channelItem[i].id == channelId.id)
		{
			var mydisplay = document.getElementById('submenu'+i).style.display;
			var img = document.getElementById('nav_img'+i);
			if(mydisplay!='block')
			 { 
				document.getElementById('leftmenu'+i).className="over";
				document.getElementById('submenu'+i).style.display="block";
				var img_regexp = new RegExp('_normal' + '\\.gif$');        
				var img_re = '_over.gif'; 
				img.src = img.src.replace(img_regexp, img_re);
			}
			else
			{
				document.getElementById('leftmenu'+i).className="normal";
				document.getElementById('submenu'+i).style.display="none";
				var img_regexp = new RegExp('_over' + '\\.gif$');        
				var img_re = '_normal.gif'; 
				img.src = img.src.replace(img_regexp, img_re);
			}
		}
	}  
 }