var d = document

var IE4 = d.all ? 1 : 0
var NN4 = d.layers ? 1 : 0
var DHTML = IE4 || NN4

var Prefix = "d.all."
var Suffix = ".style"
if (NN4) {
    Prefix = "d.layers."
    Suffix = ""
}

function makePopUp(source, name, width, height, sbar) {
    var win_prop = "location=no,toolbar=no,directories=no,menubar=no,status=no," +
               "resizable=no,dependent=no,width=" + width + ",height=" + height
    if (sbar == "yes")
        win_prop += ",scrollbars=yes"
    else
        win_prop += ",scrollbars=no"
    win_prop += ",left=" + Math.floor((screen.width - width) / 2) + ",top=" + Math.floor((screen.height - height) / 2)
    var win = open(source, name, win_prop)
    win.focus()
    return win
}

function checkEmail(str) {
    var l = str.length
    if (!l) return false
    var was_ata = 0
    var was_pset = 0
    var cch = ''
    for (var i = 0; i < l; i++) {
        var ch = str.charAt(i)
        if (ch == '@')
            if (was_ata == 1 || i == 0 || cch == '.') return false
            else was_ata = 1
            else
                if (ch == '.')
                    if (cch == '.' || cch == '@' || i == l - 1 || i == 0) return false
                    else was_pset = was_ata
                    else
                        if ((ch < 'A' || ch > 'Z') && (ch < 'a' || ch > 'z') &&
	    (ch < '0' || ch > '9') && (ch != '_') && (ch != '-')) return false
                        cch = ch
                    }
                    return (was_ata && was_pset)
                }

                function isDigit(formObj) {
                    eval("var re='([0-9]{" + formObj.value.length + "})'");
                    if (formObj.value.match(re))
                        return true
                    else return false
                }

                function validAddr(formObj) {
                    eval("var re='([0-9A-Za-z\-\ \.\#\,\\']{" + formObj.value.length + "})'")
                    if (formObj.value.match(re) && formObj.value.length > 5)
                        return true
                    else return false
                }

                function validName(formObj) {
                    eval("var re='([A-Za-z\-\ \\']{" + formObj.value.length + "})'")
                    if (formObj.value.match(re) && formObj.value.length > 1)
                        return true;
                    else
                        return false;
                }

                function haveSpace(formObj) {
                    var re = '([\ ]+)'
                    if (formObj.value.match(re))
                        return true
                    else return false
                }

                function toggleButton(button) {
                    button.disabled = !button.disabled;
                }

                function divide(v1, v2) {

                    if (v2 != 0) {
                        return (trunc((v1 / v2) * 100))
                    }
                    else return ("0.00")
                }

                function trunc(what) {
                    var str = new String(what)
                    var dot = str.indexOf('.')
                    if (dot > 0) {
                        var prev = str.charAt(dot + 2)
                        if (str.charAt(dot + 3) > '5')
                            prev++
                    }
                    else return (str + '.00')
                    return str.substr(0, dot + 2) + prev
                }

                function getRadioValue(radioObject) {
                    var value = null;
                    if (radioObject != null) {
                        for (var i = 0; i < radioObject.length; i++) {
                            if (radioObject[i].checked) {
                                value = radioObject[i].value;
                                break;
                            }
                        }
                    }
                    return value;
                }

                function IsDate(y, mn, d) {
                    var ad = new Date(y, (parseFloat(mn) - 1), d)
                    var yea
                    var dc = false
                    if (y.length == 4)
                        yea = ad.getFullYear()
                    else yea = ad.getYear()
                    if ((parseFloat(d) == parseFloat(ad.getDate())) && ((parseFloat(mn) - 1) == parseFloat(ad.getMonth())) && (parseFloat(y) == parseFloat(yea)))
                        dc = true
                    else dc = false
                    cd = new Date()
                    var td = cd - ad
                    if (dc == true) {
                        if (td > 567648000000)
                            return 1
                        else return -1
                    }
                    else return 0
                }

                function gonext(from, to, len) {
                    eval("var ll = d.forms[0]." + from + ".value")
                    if (ll.length >= len)
                        eval("document.forms[0]." + to + ".focus();")
                }

                function loadWindow(a) {
                    if (a == null) return;
                    if (a.href == '') return;
                    var load = window.open(a.href, '', 'scrollbars=no,menubar=no,height=480,width=680,resizable=yes,toolbar=no,location=no,status=no,left=' + ((screen.width - 680) / 2).toString() + ',top=' + ((screen.height - 480) / 2).toString());
                }