function toggle(){
	var block	= document.getElementById('calltime-element');
	var ele		= document.getElementById('contactby');
	var opt		= ele.options[ele.selectedIndex].value;

	switch( opt ){
		case '1' :
			block.style.display = 'block';
		break;
		case '2' :
			block.style.display = 'none';
		break;
		default : block.style.display = 'block';
	}
}

function toggle_init(){
	//------------------------------------------------------------- toggles
	var opt = document.getElementById('contactby').options[document.getElementById('calltime').selectedIndex].value;
	if( opt != 1 ){
		document.getElementById('calltime-element').style.display = 'none';
	}

	addEvent(document.getElementById('contactby'), 'change', toggle);
	
	
}

addEvent(window,'load', toggle_init);