function valbutton() 
{
    var znum = new Array("31300","31500","31600","31620","31622","31301","31510","31512","31623","31624","31513","31516","31518","31519","31520","31523","31525","31627","31305","31532","31533","31535","31630","31631","31309","31537","31314","31315","31539","31313","31542","31634","31543","31544","31527","31545","31546","31548","31635","31316","31549","31550","31055","31319","31551","31320","31552","31553","31639","31641","31554","31555","31557","31642","31645","31323","31324","31646","31558","31522","31327","31411","31083","31560","31647","31648","31649","31563","31331","31328","31605","31606","31699","31333","31565","31501","31503","31566","31567","31568","31650","31569","31636","31410","31308","31632","31637","30428","31060","30411","31749","31419","31406","31037","31602","31077","31321","30427","31601","31798","31404","31794")
    var txt = zipform.zip.value
    var found = false
    for (i=0; i<znum.length; i++)
    {
        if (znum[i]==txt)
        {
            found = true
            break
        }
    }
    if (found)
    {
        return true
    }
    else
    {
        alert("I am sorry but your zip code is not within Georgia's 1st Congressional District.")
  	    return false
    }

}