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

t11 = new Image(); t11.src = "/images/head_button1h.jpg";
t12 = new Image(); t12.src = "/images/head_button1.jpg";

t21 = new Image(); t21.src = "/images/head_button2h.jpg";
t22 = new Image(); t22.src = "/images/head_button2.jpg";

t31 = new Image(); t31.src = "/images/head_button3h.jpg";
t32 = new Image(); t32.src = "/images/head_button3.jpg";

t41 = new Image(); t41.src = "/images/head_button4h.jpg";
t42 = new Image(); t42.src = "/images/head_button4.jpg";

t51 = new Image(); t51.src = "/images/head_button5h.jpg";
t52 = new Image(); t52.src = "/images/head_button5.jpg";

t61 = new Image(); t61.src = "/images/head_button6h.jpg";
t62 = new Image(); t62.src = "/images/head_button6.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;
}

var popUpWin=0;
function popUpWindow(id){
	var left=200;
	var top=200;
	var width=830;
	var height=600;
  if(popUpWin)
  {
    if(!popUpWin.closed) popUpWin.close();
  }
  popUpWin = open('/zakaz.php?page='+id, 'popUpWin', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,copyhistory=yes,width='+width+',height='+height+',left='+left+', top='+top+',screenX='+left+',screenY='+top+'');
}

function isEmpty(elem){
 var str=elem.value;
 if(str!=null || str.length==0) return(true); else return(false);
}