function ocultar_capa(estilo)
{
	if (navigator.appName== "Microsoft Internet Explorer")
		{
		document.write("<style type='text/css'>."+estilo+"{position:relative;float:left;width:100%;display: none;}</style>");
		}
}

function doit(header){		
		
			var head=document.all[header].style;
			
			if(head.display =="")
			{
				head.display = "inline";	
						
			}else
			{
				if (head.display=="none"){
					head.display = "inline";				
				}
				else{
					head.display="none"				
				}
			}			
		}
function doitUp(header){	
		if(event.KeyCode == '13')
		{		
			var head=document.all[header].style;
			
			if(head.display =="")
			{
				head.display = "none";					
			}
			if (head.display=="none"){
				head.display = "inline";				
			}
			else{
				head.display="none"				
			}
		}
	}