function display(obj)
{
	//alert(obj);
	document.getElementById(obj).style.display='block';
}

function hide(obj)
{
	document.getElementById(obj).style.display='none';
}

function check(url)
{
	ajaxRequestPost(url,'ajax',0,document.send,'check_error()');
}

function check2(url)
{
	document.getElementById('ajax').innerHTML='';
	check2_listener();
	document.send.submit();
}

function check2_listener(){
	if (document.getElementById('ajax').innerHTML=='')
		window.setTimeout("check2_listener()",1);
	else
		check_error();
}

var old_errors=new Array();

function check_error()
{
	errors=document.getElementById('ajax').innerHTML;
	
	teile=errors.split('|');
	//alert(errors);

	for(key in old_errors)
	if(old_errors[key])
	{
		if (document.getElementById(key))
		{
			if (old_errors[key]!=1)
				document.getElementById(key).className=old_errors[key];
			else
				document.getElementById(key).className='no_error';
		}
		old_errors[key]=0;
	}
	
	for(i in teile)
	if (teile[i])
	{
		if (document.getElementById(teile[i]))
		{
			old_errors[teile[i]]=document.getElementById(teile[i]).className;
			if (!old_errors[teile[i]]) old_errors[teile[i]]=1;
			document.getElementById(teile[i]).className='error';
		}
	}
	if (teile[0]=='beratungok')
	{
		beratung(teile[1]);
	}
	else
	if (teile[0]=='ok')
	{
		if (teile[1])
		{
			teile[1]=teile[1].replace('&','&');
			location.href=teile[1];
		}
		if (teile[2])
		{
			teile[2]=teile[2].replace('&','&');
			eval(teile[2]);
		}
		hide_layer();
	}
	else{
		if(teile[0]=='loginerror'){
			display('loginerror');
		} else {
			display('error');
		}
		
		
	}
}


function un_check_error()
{
	for(key in old_errors)
	if(old_errors[key])
	{
		if (document.getElementById(key))
		{
			if (old_errors[key]!=1)
				document.getElementById(key).className=old_errors[key];
			else
				document.getElementById(key).className='no_error';
		}
		old_errors[key]=0;
	}
	hide('error');
}




function showlayer(url,width,height)
{
	document.getElementById('layer').innerHTML ='';
	ajaxRequest(url,'layer',0,'',showMe(width,height));
}

function hideLayer()
{ 
	document.getElementById('layer').style.display='none';
	document.getElementById('layer').style.visibility='hidden';
	
	document.getElementById('overlay').style.display='none';
	document.getElementById('overlay').style.visibility='hidden';
}

function showMe(width,height)
{
	tmparray = getPageSize();
	pageWidth = tmparray[0];
	pageHeight = tmparray[1];
	windowWidth = tmparray[2];
	windowHeight = tmparray[3];
	xScrolled = tmparray[4];
	yScrolled = tmparray[5];
	
	document.getElementById('layer').style.width=width+'px';
	document.getElementById('layer').style.height=height+'px';
	document.getElementById('layer').style.marginLeft='-'+(width/2)+'px';		
	
	//layer einblenden
	document.getElementById('layer').style.display='block';
	document.getElementById('layer').style.visibility='visible';
	
	//overlay einblenden
	document.getElementById('overlay').style.display='block';
	document.getElementById('overlay').style.visibility='visible';	
} 

function getPageSize()
{
	var xScroll, yScroll;
	if (window.innerHeight && window.scrollMaxY) {
		xScroll = document.body.scrollWidth;
		yScroll = window.innerHeight + window.scrollMaxY;
	} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}

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

	var xScrolled, yScrolled;
	if (self.pageYOffset) {
		xScrolled = self.pageXOffset;
		yScrolled = self.pageYOffset;
	} else if (document.documentElement && document.documentElement.scrollTop) {
		xScrolled = document.documentElement.scrollLeft;
		yScrolled = document.documentElement.scrollTop;
	} else if (document.body) {
		xScrolled = document.body.scrollLeft;
		yScrolled = document.body.scrollTop;
	}

	// for small pages with total height less then height of the viewport
	if(yScroll < windowHeight){
		pageHeight = windowHeight;
	} else {
		pageHeight = yScroll;
	}

	// for small pages with total width less then width of the viewport
	if(xScroll < windowWidth){
		pageWidth = windowWidth;
	} else {
		pageWidth = xScroll;
	}

	arrayPageSize = new Array(pageWidth, pageHeight, windowWidth, windowHeight, xScrolled, yScrolled);
	return arrayPageSize;
}