function change_hide(adivid) {
		if (document.getElementById(adivid).style.display == 'inline') { 
			document.getElementById(adivid).style.display = 'none';
			document.getElementById(adivid+'_cap').innerHTML = document.getElementById(adivid+'_cap').innerHTML.replace("-","+");
		} else { 
			document.getElementById(adivid).style.display = 'inline' ;
			document.getElementById(adivid+'_cap').innerHTML = document.getElementById(adivid+'_cap').innerHTML.replace("+","-");
		}
	}
		
	function validate(theform) {
		if (theform.domain.value == "") { 
			alert("Please type a domain!"); 
			return false; 
		} else {
			if (document.getElementById('results').style.display != 'inline') { 
				document.getElementById('results').style.display = 'inline' ;
			}
		}
		return true;
	}