function FindProxyForURL(url, host)
{
        if (isPlainHostName(host) || dnsDomainIs(host, ".aub.edu.lb") || dnsDomainIs(host, ".intmed.aubmc.org.lb") || dnsDomainIs(host, ".aubmc.org.lb") || dnsDomainIs(host, ".aubmc.org") || dnsDomainIs(host, ".comskills.info") || dnsDomainIs(host, ".solvemyproblem.net") || localHostOrDomainIs(host,"www1.aubmc.org.lb") )
            return "DIRECT";
        else if (isIpHost(host)) {
                if (isInNet(host, "192.168.0.0", "255.255.0.0") || isInNet(host, "193.188.129.0", "255.255.255.0")|| isInNet(host, "193.188.128.0", "255.255.255.0") || isInNet(host, "193.188.130.0", "255.255.255.0") || isInNet(host, "127.0.0.1", "255.255.255.255")) {
                        return "DIRECT";
                }
                else
                        return "PROXY proxya.aub.edu.lb:3128; " +
			       "PROXY proxy1.aub.edu.lb:3128; " +
			       "PROXY proxy2.aub.edu.lb:3128; " +
			       "PROXY proxy3.aub.edu.lb:3128";
        }
        else
                        return "PROXY proxya.aub.edu.lb:3128; " +
  			       "PROXY proxy1.aub.edu.lb:3128; " +
  			       "PROXY proxy2.aub.edu.lb:3128; " +
			       "PROXY proxy3.aub.edu.lb:3128";

}
function isIpHost(host){
        var MyQuad = host.split(".");
        if (MyQuad.length != 4){
                return false;
        }
        for (var i = 0; i < MyQuad.length; i++) {
                if (parseInt (MyQuad[i]) >= 0) {
                }
                else {
                        return false;
                }
        }
        return true;
}