// Initialize Scripts - is this a browser that understands DOM?
function scriptInit() {
if (!document.getElementById) {
	return;
	}
}

// Set up Event Listener - the script that allows us to use the addEvent call below
function addEvent(elm, evType, fn, useCapture) {
	if (elm.addEventListener) {
	elm.addEventListener(evType, fn, useCapture);
	return true;
	} else if (elm.attachEvent) {
	var r = elm.attachEvent('on' + evType, fn);
	return r;
	} else {
	elm['on' + evType] = fn;
	}
}
// Form stuff
function _hs_findOptions(ary, keys)
{
    var key = keys.shift();
    if (!key in ary) {
        return {};
    } else if (0 == keys.length) {
        return ary[key];
    } else {
        return _hs_findOptions(ary[key], keys);
    }
}

function _hs_findSelect(form, groupName, selectIndex)
{
    if (groupName+'['+ selectIndex +']' in form) {
        return form[groupName+'['+ selectIndex +']']; 
    } else {
        return form[groupName+'['+ selectIndex +'][]']; 
    }
}

function _hs_unescapeEntities(str)
{
    var div = document.createElement('div');
    div.innerHTML = str;
    return div.childNodes[0] ? div.childNodes[0].nodeValue : '';
}

function _hs_replaceOptions(ctl, optionList)
{
    var j = 0;
    ctl.options.length = 0;
    for (i in optionList) {
        var optionText = (-1 == String(optionList[i]).indexOf('&'))? optionList[i]: _hs_unescapeEntities(optionList[i]);
        ctl.options[j++] = new Option(optionText, i, false, false);
    }
}

function _hs_setValue(ctl, value)
{
    var testValue = {};
    if (value instanceof Array) {
        for (var i = 0; i < value.length; i++) {
            testValue[value[i]] = true;
        }
    } else {
        testValue[value] = true;
    }
    for (var i = 0; i < ctl.options.length; i++) {
        if (ctl.options[i].value in testValue) {
            ctl.options[i].selected = true;
        }
    }
}

function _hs_swapOptions(form, groupName, selectIndex)
{
    var hsValue = [];
    for (var i = 0; i <= selectIndex; i++) {
        hsValue[i] = _hs_findSelect(form, groupName, i).value;
    }

    _hs_replaceOptions(_hs_findSelect(form, groupName, selectIndex + 1), 
                       _hs_findOptions(_hs_options[groupName][selectIndex], hsValue));
    if (selectIndex + 1 < _hs_options[groupName].length) {
        _hs_swapOptions(form, groupName, selectIndex + 1);
    }
}

function _hs_onReset(form, groupNames)
{
    for (var i = 0; i < groupNames.length; i++) {
        try {
            for (var j = 0; j <= _hs_options[groupNames[i]].length; j++) {
                _hs_setValue(_hs_findSelect(form, groupNames[i], j), _hs_defaults[groupNames[i]][j]);
                if (j < _hs_options[groupNames[i]].length) {
                    _hs_replaceOptions(_hs_findSelect(form, groupNames[i], j + 1), 
                                       _hs_findOptions(_hs_options[groupNames[i]][j], _hs_defaults[groupNames[i]].slice(0, j + 1)));
                }
            }
        } catch (e) {
            if (!(e instanceof TypeError)) {
                throw e;
            }
        }
    }
}

function _hs_setupOnReset(form, groupNames)
{
    setTimeout(function() { _hs_onReset(form, groupNames); }, 25);
}

function _hs_onReload()
{
    var ctl;
    for (var i = 0; i < document.forms.length; i++) {
        for (var j in _hs_defaults) {
            if (ctl = _hs_findSelect(document.forms[i], j, 0)) {
                for (var k = 0; k < _hs_defaults[j].length; k++) {
                    _hs_setValue(_hs_findSelect(document.forms[i], j, k), _hs_defaults[j][k]);
                }
            }
        }
    }

    if (_hs_prevOnload) {
        _hs_prevOnload();
    }
}

// Start Column Script

function setTall() {
	if (document.getElementById) {
		// the divs array contains references to each column's div element.
		// Replace 'center' 'right' and 'left' with your own.
		// Or remove the last one entirely if you've got 2 columns.  Or add another if you've got 4!
		var divs = new Array(document.getElementById('frame'), document.getElementById('maincontent'), document.getElementById('contentcenter'));

		// Let's determine the maximum height out of all columns specified
		var maxHeight = 0;
		for (var i = 0; i < divs.length; i++) {
			if (divs[i].offsetHeight > maxHeight) maxHeight = divs[i].offsetHeight;
		}
		maxHeight = maxHeight + 550;
		if (maxHeight < 740) maxHeight = 820;

		// Let's set all columns to that maximum height
		for (var i = 0; i < divs.length; i++) {
			divs[i].style.height = maxHeight + 'px';

			// Now, if the browser's in standards-compliant mode, the height property
			// sets the height excluding padding, so we figure the padding out by subtracting the
			// old maxHeight from the new offsetHeight, and compensate!  So it works in Safari AND in IE 5.x
			if (divs[i].offsetHeight > maxHeight) {
				divs[i].style.height = (maxHeight - (divs[i].offsetHeight - maxHeight)) + 'px';
			}
		}
	}
}

addEvent(window, 'load', setTall, false);
addEvent(window, 'resize', setTall, false);


var _hs_prevOnload = null;
if (window.onload) {
    _hs_prevOnload = window.onload;
}
window.onload = _hs_onReload;

var _hs_options = {};
var _hs_defaults = {};