function img_change(obj, mode){
	
	var reg = /(.*)_(on|off)/;
	var find = obj.src.match(reg)[0];
	var name = obj.src.match(reg)[1];
	obj.src = obj.src.replace(find,name+'_'+mode);
}


function pageOn(base) {
	var url = getPage();

	var i = 0;
	while (true) {
		i++;
		var img = document.images[base+i];
		if (!img) {
			break;
		}
		var page = getPage(img.parentNode.href);
		if (url == page) {
			img.src = img.src.replace(/_off.gif/, '_on.gif');
		} else {
			img.src = img.src.replace(/_on.gif/, '_off.gif');
		}
	}
}

function getPage(url) {
	if (!url) url = location.href;
	var tmp = url.split('?')[0].split('/');
	return tmp[tmp.length-1];
}

function neopleBlog(){
	window.open('http://blog.naver.com/neoplog','','toolbar=1,scrollbars=1,location=1,status=1,menubar=1,resizable=1,top=10,left=10');
}

function checkmailaddy(){
	var formm = document.forms['formm'];
	if(formm.email_select.value == '1'){
		formm.email2.style.display = '';
		formm.email2.focus();
	}
	else{
		formm.email2.style.display = 'none';
	}
}