function checkMail(fname)
{

var f=document.forms[fname];
if(f.elements["email"].value)
	{	
		var re = new RegExp(".+@([A-Za-z0-9-_])+[.].*([A-Za-z0-9-_])+$","ig");
		if(!re.exec(f.elements["email"].value))
		{
			alert("Ââåäåí íåêîððåêòíûé e-mail");
			return false;
		}
		else return true;
	}
else return false;
}
function show_parent(url)
{
	if(window.opener){
		window.opener.location.href = url;
	}
}