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 xScrollLeft(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.scrollLeft) 
			offset=w.document.documentElement.scrollLeft;
		else 
			if(w.document.body && xDef(w.document.body.scrollLeft)) 
				offset=w.document.body.scrollLeft;
	}
	else 
	{
		e = xGetElementById(e);
		if (e && xNum(e.scrollLeft)) 
			offset = e.scrollLeft;
	}
	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;
}

function WindowWidth() 
{
	return f_filterResults ( window.innerWidth ? window.innerWidth : 0, 
				 document.documentElement ? document.documentElement.clientWidth : 0,
				 document.body ? document.body.clientWidth : 0 );
}

function f_filterResults(n_win, n_docel, n_body) 
{
	var n_result = n_win ? n_win : 0;
	if (n_docel && (!n_result || (n_result > n_docel)))
		n_result = n_docel;
	return n_body && (!n_result || (n_result > n_body)) ? n_body : n_result;
}