function switch1(div) {
	if (document.getElementById(div)) {
		var option=['one','two'];
		for(var i=0; i<option.length; i++) {
			obj=document.getElementById(option[i]);
			obj.style.display=(option[i]==div)? "block" : "none";
		}
	}
}
//
function switch2() {
	var option=['tel1','tel2'];
	for(var i=0; i<option.length; i++) {
		obj=document.getElementById(option[i]);
		obj.className=(obj.className=="visible")? "hidden" : "visible";
	}
}
//
function toggle(div) {
	var option=['','',''];
	for(var i=0; i<option.length; i++) {
		obj=document.getElementById(option[i]);
		obj.style.display=(option[i]==div) && !(obj.style.display=="block")? "block" : "none";
	}
}
window.onload=function(){switch1('one');}