function coordinates() {
	var scrollX, scrollY;
	if (document.all){
		if (!document.documentElement.scrollLeft) {
			scrollX = document.body.scrollLeft;
		} else {
			scrollX = document.documentElement.scrollLeft;
		}
		if (!document.documentElement.scrollTop) {
			scrollY = document.body.scrollTop;
		} else {
			scrollY = document.documentElement.scrollTop;
		}
	} else {
		scrollX = window.pageXOffset;
		scrollY = window.pageYOffset;
	}
	return scrollY
}

var xOp7Up, xOp6Dn, xIE4Up, xIE4, xIE5, xNN4, xUA = navigator.userAgent.toLowerCase();
if (window.opera) {
	var i = xUA.indexOf('opera');
	if (i != -1) {
		var v = parseInt(xUA.charAt(i+6));
		xOp7Up = v>=7;
		xOp6Dn = v<7;
	}
} else if (navigator.vendor != 'KDE' && document.all && xUA.indexOf('msie') != -1) {
	xIE4Up = parseFloat(navigator.appVersion)>=4;
	xIE4 = xUA.indexOf('msie 4') != -1;
	xIE5 = xUA.indexOf('msie 5') != -1;
} else if (document.layers) {
	xNN4 = true;
}

xMac = xUA.indexOf('mac') != -1;

function xDef() {
	for (var i = 0; i<arguments.length; ++i) {
		if (typeof (arguments[i]) == 'undefined') {
			return false;
		}
	}
	return true;
}
function xGetElementById(e) {
	if (typeof (e) == 'string') {
		if (document.getElementById) {
			e = document.getElementById(e);
		} else if (document.all) {
			e = document.all[e];
		} else {
			e = null;
		}
	}
	return e;
}
function xLeft(e, iX) {
	if (!(e=xGetElementById(e))) {
		return 0;
	}
	var css = xDef(e.style);
	if (css && xStr(e.style.left)) {
		if (xNum(iX)) {
			e.style.left = iX+'px';
		} else {
			iX = parseInt(e.style.left);
			if (isNaN(iX)) {
				iX = 0;
			}
		}
	} else if (css && xDef(e.style.pixelLeft)) {
		if (xNum(iX)) {
			e.style.pixelLeft = iX;
		} else {
			iX = e.style.pixelLeft;
		}
	}
	return iX;
}
function xMoveTo(e, x, y) {
	xLeft(e,x);
	xTop(e,y);
}
function xNum() {
	for (var i = 0; i<arguments.length; ++i) {
		if (isNaN(arguments[i]) || typeof (arguments[i]) != 'number') {
			return false;
		}
	}
	return true;
}
function xScrollTop(e, bWin) {
	var offset = 0;
	if (!xDef(e) || bWin || e == document || e.tagName.toLowerCase() == 'html' || e.tagName.toLowerCase() == 'body') {
		var w = window;
		if (bWin && e) {	
			w = e;
		}
		if (w.document.documentElement && w.document.documentElement.scrollTop) {
			offset = w.document.documentElement.scrollTop;
		} else if (w.document.body && xDef(w.document.body.scrollTop)) {
			offset = w.document.body.scrollTop;
		}
	} else {
		e = xGetElementById(e);
		if (e && xNum(e.scrollTop)) {
			offset = e.scrollTop;
		}
	}
	return offset;
}
function xStr(s) {
	for (var i = 0; i<arguments.length; ++i) {
		if (typeof (arguments[i]) != 'string') {
			return false;
		}
	}
	return true;
}
function xTop(e, iY) {
	if (!(e=xGetElementById(e))) {
		return 0;
	}
	var css = xDef(e.style);
	if (css && xStr(e.style.top)) {
		if (xNum(iY)) {
			e.style.top = iY+'px';
		} else {
			iY = parseInt(e.style.top);
			if (isNaN(iY)) {
				iY = 0;
			}
		}
	} else if (css && xDef(e.style.pixelTop)) {
		if (xNum(iY)) {
			e.style.pixelTop = iY;
		} else {
			iY = e.style.pixelTop;
		}
	}
	return iY;
}