function register(){
mywindow=open('register.html','myname','STATUS=NO,TOOLBAR=NO,LOCATION=NO,DIRECTORIES=NO,COPYHISTORY=NO,MENU=NO,RESIZABLE=NO,SCROLLBARS=YES,width=480,height=460,screenX=100,screenY=100,top=100,left=100');
    mywindow.location.href = 'register.html';
    if (mywindow.opener == null) mywindow.opener = self; 
}