var url; 
var srv = document.location.hostname; 

switch (srv.toUpperCase()) {
    case "LOCALHOST":
        url = "http://maps.google.com/maps?file=api&v=2.x&key=ABQIAAAAK2uxvLKOW-f0xso6qTpG_BT2yXp_ZAY8_ufC3CFXhHIE1NvwkxQhj8o8IzPZT_DD72vR2osZC90omA";
        break;
    case "WWW.SILKECOM.COM":
        url = "http://maps.google.com/maps?file=api&v=2.x&key=ABQIAAAALuxrFHaGFSsakyBZ-v9B8BTC9IwfQPOV_2cIeyKsmcf0z82ygRSwkg4UybjwWC8BzlRxSh_Xttliag";
        break;
    case "SILKECOM.COM":
        url = "http://maps.google.com/maps?file=api&v=2.x&key=ABQIAAAALuxrFHaGFSsakyBZ-v9B8BQitPZKszHcQJcs8X9ZWLRnpmupWBR9Ql4EwhiNiXxef3GO8EDWv1pLLA";
        break;
    case "TEST.SILKECOM.COM":
        url = "http://maps.google.com/maps?file=api&v=2.x&key=ABQIAAAALuxrFHaGFSsakyBZ-v9B8BRfASZp_mH8rp8OaGnFJJ4Tt-3tmxQpjhA4_Z1PDPQxIFaQo3sJw0c9hg";
        break;
    case "192.168.0.122:8081":
        url = "http://maps.google.com/maps?file=api&v=2.x&key=ABQIAAAALuxrFHaGFSsakyBZ-v9B8BSP-8ATDAWdpzncRVdARtw_yVyaoxSY-WSH442HU5gonvXS_XK0OnL2tQ";
        break;
    case "192.168.0.122":
        url = "http://maps.google.com/maps?file=api&v=2.x&key=ABQIAAAALuxrFHaGFSsakyBZ-v9B8BRvTJz_4Zm3VEVivlxSqxVFnd1C-RSJJyh1YGehf4X09Hyc1i3gTjOz3w";
        break;
}

var jsi = "<" + "script type='text/javascript'"; jsi += " src='" + unescape(url) + "'></" + "script>"; 
document.write(jsi);