/* formexp.js compiled from X 4.0 with XC 0.27b. Distributed by GNU LGPL. 
For copyrights, license, documentation and more visit Cross-Browser.com */
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 xDisplay(e,s)
{
	if(!(e=xGetElementById(e))) 
	return null;
	
	if(e.style && xDef(e.style.display)) 
	{
		if (xStr(s)) e.style.display = s;
		return e.style.display;
	}

	return null;
}


function xGetElementById(e)
{
	if(typeof(e)!='string') 
		return e;

	if(document.getElementById)
		e=document.getElementById(e);
	else
		if(document.all)
			e=document.all[e];
		else
			e=null;

	return e;
}


function xStr(s)
{
	for(var i=0; i<arguments.length; ++i)
	{
		if(typeof(arguments[i])!='string') 
			return false;
	}

	return true;
}