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" id="numberOfRooms" onchange="setNumRooms(this.options[this.selectedIndex].value);">';
	for (var i = 1; i < 9; i++) {
		x += '<option value="'+i+'"'+(numRooms == i ? ' selected' : '')+'>' + i;
	}
	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="0" 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)', 0,3, 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="0">\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" 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 + '"';
	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);
}