function mo(that,state)
{
    if (state=='1')
    {
        var re = new RegExp ('.gif', 'gi') ;
        that.src = that.src.replace(re, '-o.gif') ;
    }
    if (state=='0')
    {
        var re = new RegExp ('-o.gif', 'gi') ;
        that.src = that.src.replace(re, '.gif') ;
    }
}


function strpos(str, ch) {
    for (var i = 0; i < str.length; i++)
      if (str.substring(i, i+1) == ch) return i;
    return -1;
}


function emailcheck (email)
{
    var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i
    if (filter.test(email))
    {
        testresults=true
    }
    else
    {
        alert('Hibás e-mail cím!')
        testresults=false
    }
     if ((testresults==true) && (strpos(email,' ')>-1)) testresults=false
return (testresults)
}

function ve(ea)
{
    if (emailcheck(ea))
    {
        document.newsletter.submit()
    }
}