g = function (name){
	return document.getElementById(name);
}

window.getScrollXY = function () {
    var self = window;
    var x,y;
    if (self.pageYOffset) // all except Explorer
    {
        x = self.pageXOffset;
        y = self.pageYOffset;
    }
    else if (document.documentElement && document.documentElement.scrollTop)
        // Explorer 6 Strict
    {
        x = document.documentElement.scrollLeft;
        y = document.documentElement.scrollTop;
    }
    else if (document.body) // all other Explorers
    {
        x = document.body.scrollLeft;
        y = document.body.scrollTop;
    }

    return {x:x,y:y};
};


window.getInnerSize = function () {
    var self = window;
    var x,y;
    if (self.innerHeight) // all except Explorer
    {
        x = self.innerWidth;
        y = self.innerHeight;
    }
    else if (document.documentElement && document.documentElement.clientHeight)
        // Explorer 6 Strict Mode
    {
        x = document.documentElement.clientWidth;
        y = document.documentElement.clientHeight;
    }
    else if (document.body) // other Explorers
    {
        x = document.body.clientWidth;
        y = document.body.clientHeight;
    }

    return { w : x, h: y };
};

window.getPageSize = function () {
    var x,y;
    var test1 = document.body.scrollHeight;
    var test2 = document.body.offsetHeight
        if (test1 > test2) // all but Explorer Mac
        {
            x = document.body.scrollWidth;
            y = document.body.scrollHeight;
        }
        else // Explorer Mac;
            //would also work in Explorer 6 Strict, Mozilla and Safari
    {
        x = document.body.offsetWidth;
        y = document.body.offsetHeight;
    }

    return { w : x, h: y };

}

/* Adopted from http://www.quirksmode.org/dom/getstyles.html, the license seems
to be *almost* public domain, all reasonably foreseeable uses of the following
code does not seem to infringe upon the license. See http://www.quirksmode.org/about/copyright.html: */

getStyle = function (el,styleProp)
{
    var x = el;
    if (x.currentStyle)
        var y = x.currentStyle[styleProp];
    else if (window.getComputedStyle)
        var y = document.defaultView.getComputedStyle(x,null).getPropertyValue(styleProp);
    return y;
}




var ua = navigator.userAgent.toLowerCase(),
	isOpera = (ua.indexOf('opera') > -1),
	isSafari = (ua.indexOf('safari') > -1),
	isGecko = (!isOpera && !isSafari && ua.indexOf('gecko') > -1),
	isIE = (!isOpera && ua.indexOf('msie') > -1);

document.getElementSize = function (elem) {
/***

MochiKit.DOM 1.3.1

See <http://mochikit.com/> for documentation, downloads, license, etc.

(c) 2005 Bob Ippolito.  All rights Reserved.

***/
    if (getStyle(elem, 'display') != 'none') {
        return {w:(elem.offsetWidth || 0), h: (elem.offsetHeight || 0)};
    }
    var s = elem.style;
    var originalVisibility = s.visibility;
    var originalPosition = s.position;
    s.visibility = 'hidden';
    s.position = 'absolute';
    s.display = '';
    var originalWidth = elem.offsetWidth;
    var originalHeight = elem.offsetHeight;
    s.display = 'none';
    s.position = originalPosition;
    s.visibility = originalVisibility;
    return {w:originalWidth,h:originalHeight};
};

document.getElementPosition = function (elem) {
/***

MochiKit.DOM 1.3.1

See <http://mochikit.com/> for documentation, downloads, license, etc.

(c) 2005 Bob Ippolito.  All rights Reserved.

***/
	if (!elem) return undefined;

	var c = {x:0,y:0};

	var box = null;
	var parent = null;

	var d = document;
    var de = d.documentElement;
    var b = d.body;

	if (elem.getBoundingClientRect) { // IE shortcut

		/*

			The IE shortcut is off by two:
			http://msdn.microsoft.com/workshop/author/dhtml/reference/methods/getboundingclientrect.asp

		*/
		box = elem.getBoundingClientRect();

		c.x += box.left +
			(de.scrollLeft || b.scrollLeft) -
			(de.clientLeft || b.clientLeft);

		c.y += box.top +
			(de.scrollTop || b.scrollTop) -
			(de.clientTop || b.clientTop);

	} else if (d.getBoxObjectFor) { // Gecko shortcut
		box = d.getBoxObjectFor(elem);
		c.x += box.x;
		c.y += box.y;
	} else if (elem.offsetParent) {
		c.x += elem.offsetLeft;
		c.y += elem.offsetTop;
		parent = elem.offsetParent;

		if (parent != elem) {
			while (parent) {
				c.x += parent.offsetLeft;
				c.y += parent.offsetTop;
				parent = parent.offsetParent;
			}
		}

		/*

			Opera < 9 and old Safari (absolute) incorrectly account for
			body offsetTop and offsetLeft.

		*/
		var ua = navigator.userAgent.toLowerCase();
		if ((typeof(opera) != "undefined" && parseFloat(opera.version()) < 9) || 
			(ua.indexOf('chrome') != -1) || 
			(ua.indexOf('safari') != -1 && self.computedStyle(elem, 'position') == 'absolute')) {
			c.x -= b.offsetLeft;
			c.y -= b.offsetTop;
		}
	}

	while (parent && parent.tagName != 'BODY' &&
		parent.tagName != 'HTML') {
		c.x -= parent.scrollLeft;
		c.y -= parent.scrollTop;
		if (parent.parentNode) {
			parent = parent.parentNode;
		} else {
			parent = null;
		}
	}

	return c;
};

document.getMousePos = function(e) {
	var posx = 0;
	var posy = 0;
	if (e.pageX || e.pageY) {
		posx = e.pageX;
		posy = e.pageY;
	} else if (e.clientX || e.clientY) {
		posx = e.clientX + document.body.scrollLeft + document.documentElement.scrollLeft;
		posy = e.clientY + document.body.scrollTop + document.documentElement.scrollTop;
	}
	// posx and posy contain the mouse position relative to the document
	// Do something with this information

	return {x:posx, y:posy};
}
hookevent = function(obj,ev,func){
	obj.attachEvent?obj.attachEvent('on'+ev,func):obj.addEventListener(ev,func,false);
}
unhookevent = function (obj,ev,func){
	obj.detachEvent?obj.detachEvent('on'+ev,func):obj.removeEventListener(ev,func,false);
}