function _join(){
	window.open("member/register.php",'','width=500,height=600,top=200,left=200');
}
function myinfo(){
	window.open("member/edit_profile.php",'','width=500,height=600,top=200,left=200');
}
function _login(){
	url=document.location.href;
	temp=url.split("?");
	arg=temp[1];
	
	window.open('dmlogin_form.php?'+arg,'','width=300,height=200,top=300,left=450');
}
function _logout(){
	url=document.location.href;
	temp=url.split("?");
	arg=temp[1];
	document.location.href="logout.php?"+arg;
}