function search_form_onkeydown(e){
	 if(e.keyCode==13)valid_search();
}
 
/*поиск оборудования по каталогу*/
function valid_search(){
	 
	 var search_text = document.getElementById('search_text');
	 if (search_text.value == "") {
		alert( "Пожалуйста, введите искомую фразу" );
	}else{
	      document.location.href='/catalog/search?search='+search_text.value;
	}
	return false; 
}


		

 dom = (document.getElementById)? true : false;
  isOpera = (window.opera)? true : false;
isOpera7 = (isOpera && document.readyState)? true : false;
  function  showLogin(islogin) {
	if( isOpera &&  !isOpera7 ) {
		return true;
	} else if (dom) {
		document.getElementById('login-form').style.display = "block";
                if(islogin){
		    document.forms['login'].passwd.focus();
                }
                else{
		    document.forms['login'].login.focus();
                }
		return false;
	}
	return true;
}

function hideLogin() {
	document.getElementById('login-form').style.display = "none";
	return false;
}

  function  showReg(islogin) {
	if( isOpera &&  !isOpera7 ) {
		return true;
	} else if (dom) {
		document.getElementById('reg-form').style.display = "block";
		return false;
	}
	return true;
}

function hideReg() {
	document.getElementById('reg-form').style.display = "none";
	return false;
}