problem in validating the form

[madhuriks]

hi,
in my web-application..im facing the problem 'Unable to retrieve'...may i know why..i had done validations for my form...but when im submitting it is not get submitted and i used Firebug and im getting error in Console as '500 Internal Server Error' may i know why..here is my javascript code..

function trim(stringToTrim) {
    return stringToTrim.replace(/^\s+|\s+$/g, "");
}
var xmlHttp = null;
function login() {
    if (validate()) {
        try {
            // Firefox, Opera 8.0+, Safari
            xmlHttp = new XMLHttpRequest();
        } catch (e) {
            // Internet Explorer
            try {
                xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
            } catch (e) {
                xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
            }
        }
        var pname = document.getElementById("packName").value;
        var url = "/XmlGprs1/RegisterXml?name=login";
        url = url + "&pname=" + pname;
        xmlHttp.onreadystatechange = stateChanged;
        xmlHttp.open("GET", url, true);
        xmlHttp.send(null);
    }
}
function stateChanged() {
    if (xmlHttp.readyState == 4) {
        if (xmlHttp.status == 200) {
            parseMsg();
        } else {
            alert("Unable to retrieve");
        }
    }
}
function trim(stringToTrim) {
    return stringToTrim.replace(/^\s+|\s+$/g, "");
}
function parseMsg() {

    // PACK_NAME validation
    var pname = document.getElementById("packName").value;
    response = xmlHttp.responseXML.documentElement;
    var valid = true;
    var packNodes = response.getElementsByTagName("PACK_NAME");
    for ( var i = 0; i < packNodes.length; i++) {
        var packNode = packNodes.item(i);
        var packNodeChilds = packNode.childNodes;
        for ( var j = 0; j < packNodeChilds.length; j++) {
            var packNodechild = packNodeChilds.item(j);
            if (packNodechild.nodeType == Node.TEXT_NODE) {
                //alert(childNode.nodeValue);
                if ( packNodechild.nodeValue == pname) {
                    alert("Pack Name Already Exists");
                    valid = false;
                }
            }
        }
    }
if(valid){
        document.frm.submit();
    }
}

thanks,
madhu.

[hsriat]

500 Server error has got nothing to do with JavaScript. Check your server side code.

[madhuriks]

hi gud mrng,
i had checked and i got it....thanks for ur reply...