var xhr_farge = false; 

if (window.XMLHttpRequest) {
	xhr_farge = new XMLHttpRequest();
} else if (window.ActiveXObject) {
	xhr_farge = new ActiveXObject("Microsoft.XMLHTTP");
}

function loadCodes(){
	var url = 'pages/fargekoder_resultat.php';
	var mor = document.getElementById('mor').selectedIndex;
	var far = document.getElementById('far').selectedIndex;
	var morfar = '?mor=' + mor + '&far=' + far;

	xhr_farge.open('GET', url+morfar);
	xhr_farge.onreadystatechange = function(){
		if(xhr_farge.readyState == 4 && xhr_farge.status == 200){
			document.getElementById('fargeResultat').innerHTML = xhr_farge.responseText;
			document.getElementById('mor')
		}
	}
	xhr_farge.send(null);
}

function grayOut(vis, options)
{  
	// Pass true to gray out screen, false to ungray  
	// options are optional.  This is a JSON object with the following (optional) properties  
	// opacity:0-100         
	// Lower number = less grayout higher = more of a blackout   
	// zindex: #             
	// HTML elements with a higher zindex appear on top of the gray out  
	// bgcolor: (#xxxxxx)    
	// Standard RGB Hex color code  
	// grayOut(true, {'zindex':'50', 'bgcolor':'#0000FF', 'opacity':'70'});  
	// Because options is JSON opacity/zindex/bgcolor are all optional and can appear  
	// in any order.  Pass only the properties you need to set. 
	
	var options = options || {};   
	var zindex = options.zindex || 50;  
	var opacity = options.opacity || 70;  
	var opaque = (opacity / 100);  
	var bgcolor = options.bgcolor || '#000000';  
	var dark=document.getElementById('darkenScreenObject');  
	
	if(!dark)
	{    
		// The dark layer doesn't exist, it's never been created.  So we'll    
		// create it here and apply some basic styles.    
		// If you are getting errors in IE see: http://support.microsoft.com/default.aspx/kb/927917    
		var tbody = document.getElementsByTagName("body")[0];    
		var tnode = document.createElement('div');   // Create the layer. 
	   tnode.style.position='absolute';  // Position absolutely 
	   tnode.style.top='0px'; // In the top
	   tnode.style.left='0px'; // Left corner of the page
	   tnode.style.overflow='hidden'; // Try to avoid making scroll bars
	   tnode.style.display='none';  // Start out Hidden 
	   tnode.id='darkenScreenObject';  // Name it so we can find it later    
	   tbody.appendChild(tnode);  // Add it to the web page    
	   dark=document.getElementById('darkenScreenObject');  // Get the object.  
	}
	if(vis)
	{    // Calculate the page width and height     
		if(document.body && ( document.body.scrollWidth || document.body.scrollHeight ) )
		{        
			var pageWidth = document.body.scrollWidth+'px'; 
			var pageHeight = document.body.scrollHeight+'px';
		}
		else if(document.body.offsetWidth )
		{      
			var pageWidth = document.body.offsetWidth+'px'; 
			var pageHeight = document.body.offsetHeight+'px';
		}
		else
		{
			var pageWidth='100%';
			var pageHeight='100%';
		}       //set the shader to cover the entire page and make it visible.    
		dark.style.opacity=opaque;
		dark.style.MozOpacity=opaque;
		dark.style.filter='alpha(opacity='+opacity+')'; 
		dark.style.zIndex=zindex; 
		dark.style.backgroundColor=bgcolor;
		dark.style.width= pageWidth;
		dark.style.height= pageHeight;
		dark.style.display='block';
	}
	else
	{
		dark.style.display='none'; 
	}
}