if(!document.getElementById){document.getElementById=function(n){return document.all[n]}}

t11 = new Image();
t11.src = "/images/tmenu/b13.jpg";
t12 = new Image();
t12.src = "/images/tmenu/b1.jpg";

t21 = new Image();
t21.src = "/images/tmenu/b23.jpg";
t22 = new Image();
t22.src = "/images/tmenu/b2.jpg";

t31 = new Image();
t31.src = "/images/tmenu/b33.jpg";
t32 = new Image();
t32.src = "/images/tmenu/b3.jpg";

t41 = new Image();
t41.src = "/images/tmenu/b43.jpg";
t42 = new Image();
t42.src = "/images/tmenu/b4.jpg";

t51 = new Image();
t51.src = "/images/tmenu/b53.jpg";
t52 = new Image();
t52.src = "/images/tmenu/b5.jpg";

t61 = new Image();
t61.src = "/images/tmenu/b63.jpg";
t62 = new Image();
t62.src = "/images/tmenu/b6.jpg";

t71 = new Image();
t71.src = "/images/tmenu/b73.jpg";
t72 = new Image();
t72.src = "/images/tmenu/b7.jpg";



function rollOver(img){ if (document.images && document.images[img]) document.images[img].src = eval(img + "1.src");  }
function rollOff(img) { if (document.images && document.images[img]) document.images[img].src = eval(img + "2.src"); }

function isEmpty(elem) {
	var str = elem.value;
    var re = /.+/;
    if(!str.match(re)) {
        return true;
    } else {
        return false;
    }
}

function isEMailAddr(elem) {
	var str = elem.value;
    var re = /^[\w-]+(\.[\w-]+)*@([\w-]+\.)+[a-zA-Z]{2,7}$/;
    if (!str.match(re)) {
        return true;
    } else {
        return false;
    }
}

function check_reg(){
	var form;
	var error='';
	form = document.forms['reg_form'];
	with(form){
		if(isEmpty(login)) error="Необходимо ввести имя пользователя от 3 до 26 символов\n";
		if(isEmpty(user_password)) error +="Пароль не указан\n";
		if(user_password.value !== RetypePassword.value) error +="Введенные пароли не совпадают\n";
		if(isEMailAddr(email)) error +="Email адрес не указан\n";
		if(isEmpty(reg_code)) error +="Защитный код не указан\n";
	}
	if(error){
		alert(error);
		return false;
	}else return true;
}