function fadeCountries(exception) {
	items = document.getElementsByClassName('country_link');
	
	for(x=0; x<items.length; x++) {
		items[x].style.opacity = '0.3';
	}
	
	exception.style.opacity = '1';
}

function resetFadeCountries() {
	items = document.getElementsByClassName('country_link');
	
	for(x=0; x<items.length; x++) {
		items[x].style.opacity = '1';
	}
}

function checkEnter(e, func) {

	var characterCode;
	
	if(e && e.which){ 
		e = e;
		characterCode = e.which;
	} else {
		e = event
		characterCode = e.keyCode
	}
	
	if(characterCode == 13){ 
		
		if(func == "authenticate") {
			authenticate();
		} else if (func == "register") {
			register();
		}
	} else {
		
	}
}