function showHide(id,how)
{
	var objectstyle = document.getElementById(id).style;
	
	if(how == 'show')
	{
		objectstyle.display = "block";
	}
	if(how == 'hide')
	{
		objectstyle.display = "none";
	}
	if(how == 'toggle')
	{
		if(objectstyle.display == "block") objectstyle.display = "none";
		else objectstyle.display = "block";
	}
}