function expander(d,close) {
	
	if(document.getElementById(d).style.display == "none") 
	{
		document.getElementById(d).style.display = "block";
		
		var arrayclose = close.split(',');
		for (i=0;i<arrayclose.length;i++)
		{
			document.getElementById(arrayclose[i]).style.display = "none";
		}
	}
	else
	{
		document.getElementById(d).style.display = "none";
	}
}