var enablefade="no" //("yes" to enable fade in effect, "no" to disable)
var autohidebox=["no", 5] //Automatically hide box after x seconds? [yes/no, if_yes_hide_after_seconds]
var showonscroll="yes" //Should box remain visible even when user scrolls page? ("yes"/"no)
var IEfadelength=1 //fade in duration for IE, in seconds
var Mozfadedegree=0.05 //fade in degree for NS6+ (number between 0 and 1. Recommended max: 0.2)

	
	
function displayfadeinbox(text,layer_name)
{
	var ie=document.all && !window.opera
	var dom=document.getElementById
	iebody=(document.compatMode=="CSS1Compat")? document.documentElement : document.body
	objref=(dom)? document.getElementById(layer_name) : 'document.all.' + layer_name
	var scroll_top=(ie)? iebody.scrollTop : window.pageYOffset
	var docwidth=(ie)? iebody.clientWidth : window.innerWidth
	docheight=(ie)? iebody.clientHeight: window.innerHeight
	var objwidth=objref.offsetWidth
	objheight=objref.offsetHeight
	objref.style.left=docwidth/2-objwidth/2+"px"
	objref.style.top=scroll_top+docheight/2-objheight/2+"px"
	
	if(text != '')
	{
		objref.innerHTML=text;
	}	

	var body_div = document.getElementById('body_div');
	//alert(body_div.offsetHeight);
	
	if (showonscroll=="yes")
	showonscrollvar=setInterval("staticfadebox()", 50)
	
	var element = document.getElementById(layer_name);
	element.style.visibility = "visible";
	
	controlledhidebox(layer_name)
}

function mozfadefx()
{
	if (parseFloat(objref.style.MozOpacity)<1)
	objref.style.MozOpacity=parseFloat(objref.style.MozOpacity)+Mozfadedegree
	else{
		clearInterval(mozfadevar)
		controlledhidebox()
	}
}

function staticfadebox()
{
	var body_div = document.getElementById('body_div');
	
	var ie=document.all && !window.opera
	var scroll_top=(ie)? iebody.scrollTop : window.pageYOffset
		
	if(scroll_top + docheight/2 - objheight/2 + objheight < body_div.offsetHeight)
	{	
		objref.style.top=scroll_top+docheight/2-objheight/2+"px"
	}	
		
}

function hidefadebox()
{
	objref.style.visibility="hidden"
	if (typeof showonscrollvar!="undefined")
	clearInterval(showonscrollvar)
}

function controlledhidebox(layer_name)
{
	if(autohidebox[0] == "yes")
	{
		var delayvar=(enablefade=="yes" && objref.filters)? (autohidebox[1]+objref.filters[0].duration)*1000 : autohidebox[1]*1000
		
		setTimeout("hidefadebox()", delayvar)
	}
}

function hide_window_alert(layer_name) 
{
	var element = document.getElementById(layer_name);
	element.style.visibility = "hidden";
}