var formulaecallback =   
	{   
		cache:false,
		success: function(o) {
		document.getElementById('midcol').innerHTML = o.responseText;	
				document.getElementById('loading').style.display = "none";
		}
	} 

function loadFormulae(id)
{
	document.getElementById('loading').style.display = "";
	var form = document.getElementById(id);
  	YAHOO.util.Connect.setForm(form);
	var transaction = YAHOO.util.Connect.asyncRequest("POST","formulae.action",formulaecallback,null);		
}