// Javascript to support ian.com hotel search - hotelsearch.fnc

    var defaultAdults="2";
    var cellStyle=" class='IANFormhdr'";
    var childHelp="Please provide the ages of children in each room. Children's ages should be their age at the time of travel.";
    var adultHelp="";
    var textRooms="Rooms:";
    var textAdults="Adults:";
    var textChildren="Children:";
    var textChildError="Please specify the ages of all children.";
    var pad='<img src="http://travel.ian.com/images/p.gif" width="5" height="1">';
    // NOTE: Question marks ("?") get replaced with a numeric value
    var textRoomX="Room ?:";
    var textChildX="Child ?:";

    var adultsPerRoom=new Array(defaultAdults);
    var childrenPerRoom=new Array();
    var childAgesPerRoom=new Array();
    var numRooms=1;
    var maxChildren=0;

    function travelNowize() {
        // Kit: convert field values to proper dates for ian
       var adt = new Date(Date.parse(document.forms['IANForm'].arrDate.value));
       var ddt = new Date(Date.parse(document.forms['IANForm'].depDate.value));
        document.forms['IANForm'].departureDay.value = ddt.getDate();
        document.forms['IANForm'].departureMonth.value = ddt.getMonth();
        document.forms['IANForm'].arrivalDay.value = adt.getDate();
        document.forms['IANForm'].arrivalMonth.value = adt.getMonth();
    }

    function group() {
        if (document.IANForm.numberOfRooms.selectedIndex == 8) {
            window.location="http://travel.ian.com/index.jsp?pageName=groups&cid=252688&locale=en_US";
            return false;
        } else {
            travelNowize();
            return true;
        }
    }

    function groupplus() { //Infodog: Advanced search
        if (document.IANForm.numberOfRooms.selectedIndex == 8) {
            window.location="http://travel.ian.com/index.jsp?pageName=groups&cid=252688&locale=en_US";
            return false;
            }
        else {
            with (document.IANForm) {
                streetAddress.value="";
                metroAddress.value="";
                el=address.value.split(',');
                if (el.length>2) {
                    if (dodistance.checked==true)
                        streetAddress.value=el[0];
                    k=1;
                    }
                else k=0;
                for (i=k;i<el.length;i++) {
                    metroAddress.value += el[i];
                    if (i<el.length-1)
                        metroAddress.value +=',';
                    }
//                alert(streetAddress.value+';'+metroAddress.value);
               adt = new Date(Date.parse(arrDate.value));
               ddt = new Date(Date.parse(depDate.value));
               thismo = new Date().getMonth();
               if (adt.getMonth()<thismo)
                   arrivalMonth.value=adt.getMonth()+12;
               else
                   arrivalMonth.value=adt.getMonth();
               arrivalDay.value=adt.getDate();
               if (ddt.getMonth()<thismo)
                   departureMonth.value=ddt.getMonth()+12;
               else
                   departureMonth.value=ddt.getMonth();
               departureDay.value=ddt.getDate();

               }
            return true;
            }
        }

    function setChildAge(room, child, age) {
        if (childAgesPerRoom[room] == null) {
            childAgesPerRoom[room] = new Array();
        }
        childAgesPerRoom[room][child] = age;
    }

    function setNumAdults(room, numAdults) {
        adultsPerRoom[room] = numAdults;
    }

    function setNumChildren(room, numChildren) {
        childrenPerRoom[room] = numChildren;
        refresh();
    }

    function setNumRooms(x) {
        numRooms = x;
        for (i = 0; i < x; i++) {
            if (adultsPerRoom[i] == null) {
                adultsPerRoom[i] = 2;
            }
            if (childrenPerRoom[i] == null) {
                childrenPerRoom[i] = 0;
            }
        }
        refresh();
    }

    function renderRoomSelect() {
        var x = '';
        x += '<select name="numberOfRooms" style="width:50px;" onchange="setNumRooms(this.options[this.selectedIndex].value);">';
        for (var i = 1; i < 9; i++) {
            x += '<option value="'+i+'"'+(numRooms == i ? ' selected' : '')+'>' + i;
        }
        x += '<option value="9"'+(numRooms == 9 ? ' selected' : '')+'>9+';
        x += '</select>';
        return x;
    }

    function refresh() {
        maxChildren = 0;
        for (var i = 0; i < numRooms; i++) {
            if (childrenPerRoom[i] > maxChildren) {
                maxChildren = childrenPerRoom[i];
            }
        }

        var x = '';
        if (adultHelp.length > 0) {
            x = adultHelp + "<p>\n";
        }

        if (numRooms > 8) {
            x += textRooms;
            x += renderRoomSelect();

        } else {
            x += '<table border="0" cellspacing="2" cellpadding="0">\n';
            x += '<tr><td'+cellStyle+'>'+textRooms+pad+'</td>';
            if (numRooms > 1) {
                x += '<td'+cellStyle+'>&nbsp;</td>';
            }
            x += '<td'+cellStyle+'><nobr>'+textAdults+pad+'</nobr></td><td'+cellStyle+'><nobr>'+textChildren+pad+'</nobr></td></tr>\n';
            for (var i = 0; i < numRooms; i++) {
                x += '<tr><td'+cellStyle+'>';
                if (i == 0) {
                    x += renderRoomSelect();
                } else {
                    x += '&nbsp;';
                }
                x += '</td>';
                if (numRooms > 1) {
                    x += '<td'+cellStyle+'><nobr>'+getValue(textRoomX, i+1)+pad + '</nobr></td>';
                }
                x += '<td'+cellStyle+'>';
                x += buildSelect('room-' + i + '-adult-total', 'setNumAdults(' + i + ', this.options[this.selectedIndex].value)', 1, 4, adultsPerRoom[i]);
                x += '</td><td'+cellStyle+'>';
                x += buildSelect('room-' + i + '-child-total', 'setNumChildren(' + i + ', this.options[this.selectedIndex].value)', 0, 6, childrenPerRoom[i]);
                x += '</td></tr>\n';
            }
            x += '</table>\n';

            var didHeader = false;
            for (var i = 0; i < numRooms; i++) {
                if (childrenPerRoom[i] > 0) {
                    if (!didHeader) {
                        x += '<table border="0" cellpadding="0" cellspacing="2">\n';
                        x += '<tr><td'+cellStyle+' colspan="'+(maxChildren+1)+'">';
                        x += '<img src="/images/p.gif" width="1" height="5"><br>';
                        x += childHelp;
                        x += '<img src="/images/p.gif" width="1" height="5"><br>';
                        x += '</td></tr>\n<tr><td'+cellStyle+'>&nbsp;</td>';
                        for (var j = 0; j < maxChildren; j++) {
                            x += '<td'+cellStyle+'><nobr>'+getValue(textChildX, j+1)+pad+'</nobr></td>\n';
                        }
                        didHeader = true;
                    }
                    x += '</tr>\n<tr><td'+cellStyle+'><nobr>'+getValue(textRoomX, i+1)+pad+'</nobr></td>';
                    for (var j = 0; j < childrenPerRoom[i]; j++) {
                        x += '<td'+cellStyle+'>';
                        var def = -1;
                        if (childAgesPerRoom[i] != null) {
                            if (childAgesPerRoom[i][j] != null) {
                                def = childAgesPerRoom[i][j];
                            }
                        }
                        x += '<select name="room-'+i+'-child-'+j+'-age" style="width:50px;" onchange="setChildAge('+i+', '+j+', this.options[this.selectedIndex].value);">';
                        x += '<option value="-1"'+(def == -1 ? ' selected' : '')+'>-?-';
                        x += '<option value="0"'+(def == 0 ? ' selected' : '')+'>&lt;1';
                        for (var k = 1; k <= 18; k++) {
                            x += '<option value="'+k+'"'+(def == k ? ' selected' : '')+'>'+k;
                        }
                        x += '</td>';
                    }
                    if (childrenPerRoom[i] < maxChildren) {
                        for (var j = childrenPerRoom[i]; j < maxChildren; j++) {
                            x += '<td'+cellStyle+'>&nbsp;</td>';
                        }
                    }
                    x += '</tr>\n';
                }
            }
            if (didHeader) {
                x += '</table>\n';
            }
        }

        document.getElementById("hot-search-params").innerHTML = x;
    }

    function buildSelect(name, onchange, min, max, selected) {
        var x = '<select name="' + name + '" style="width:50px;"';
        if (onchange != null) {
            x += ' onchange="' + onchange + '"';
        }
        x +='>\n';
        for (var i = min; i <= max; i++) {
            x += '<option value="' + i + '"';
            if (i == selected) {
                x += ' selected';
            }

            x += '>' + i + '\n';
        }
        x += '</select>';
        return x;
    }

    function validateGuests(form) {
        if (numRooms < 9) {
            var missingAge = false;
            for (var i = 0; i < numRooms; i++) {
                var numChildren = childrenPerRoom[i];
                if (numChildren != null && numChildren > 0) {
                    for (var j = 0; j < numChildren; j++) {
                        if (childAgesPerRoom[i] == null || childAgesPerRoom[i][j] == null || childAgesPerRoom[i][j] == -1) {
                            missingAge = true;
                        }
                    }
                }
            }

            if (missingAge) {
                alert(textChildError);
                return false;
            } else {
                return true;
            }
        } else {
            return true;
        }
    }

    function submitGuestInfoForm(form) {
        if (!validateGuests(form)) {
            return false;
        }

        return true;
    }

    function getValue(str, val) {
        return str.replace(/\?/g, val);
    }