// --------------------------------------- COOKIES --------------------------------------

function CheckCookie (cName){
	
	var expiration = 1; // angives p.t. i minutter
	
	/*random_num = (Math.round((Math.random()*900)+1))
	wrtAlert = readCookie(cName) + "/" + random_num	*/

	if (readCookie(cName) != '' && readCookie(cName) != null) {
	
			setBackgroundImage ('frontimg', readCookie(cName))
			setBackgroundImage ('prodMenu', readCookie(cName))
	
		} else {
		
			if (document.images) { 
				
				random_img = (Math.round((Math.random()*7)+1))
				//alert(random_img);
				
				switch(random_img){

					case 1:
						imagename = new Image(); 
			  			imagename.src = "/files/Site_upload/Forsidemenu/baggrunde/front_1.jpg"; 
						break;
						
					case 2:
						imagename = new Image(); 
			  			imagename.src = "/files/Site_upload/Forsidemenu/baggrunde/front_2.jpg"; 
						break;		
					
					case 3:
						imagename = new Image(); 
			  			imagename.src = "/files/Site_upload/Forsidemenu/baggrunde/front_3.jpg"; 
						break;		
					
					case 4:
						imagename = new Image(); 
			  			imagename.src = "/files/Site_upload/Forsidemenu/baggrunde/front_4.jpg"; 
						break;		
					
					case 5:
						imagename = new Image(); 
			  			imagename.src = "/files/Site_upload/Forsidemenu/baggrunde/front_5.jpg"; 
						break;		
					
					case 6:
						imagename = new Image(); 
			  			imagename.src = "files/Site_upload/Forsidemenu/baggrunde/front_6.jpg"; 
						break;		
					
					case 7:
						imagename = new Image(); 
			  			imagename.src = "files/Site_upload/Forsidemenu/baggrunde/front_7.jpg"; 
						break;		
						
					case 8:
						imagename = new Image(); 
			  			imagename.src = "files/Site_upload/Forsidemenu/baggrunde/front_8.jpg"; 
						break;		
						
					default:
						imagename = new Image(); 
			  			imagename.src = "files/Site_upload/Forsidemenu/baggrunde/front_2.jpg"; 
						break;
					}
				
				setBackgroundImage ('frontimg', imagename.src )
				setBackgroundImage ('prodMenu', imagename.src )
				
			} 
			createCookie_img(cName,imagename.src,expiration);
	}
}

 function setBackgroundImage (id, imageURL) {
					  if (document.layers)
					    document[id].background.src = imageURL == 'none' ? null : imageURL;
					  else if (document.all)
					    document.all[id].style.backgroundImage = imageURL == 'none' ? 'none' 
					: 'url(' + imageURL + ')';
					  else if (document.getElementById)
					    document.getElementById(id).style.backgroundImage = imageURL == 
					'none' ? 'none' : 'url(' + imageURL + ')';
					
					//alert(document.getElementById(id).style.backgroundImage);
					} 

function createCookie_img(name,value,expiration)
{
	if (expiration)
	{
		var date = new Date();
		date.setTime(date.getTime()+(expiration*60*1000)); //*24*60 hvis der �nskes dage
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
	//wrtAlert = name+"="+value+expires+"; path=/";
	//alert(wrtAlert);
}

function readCookie(name)
{
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++)
	{
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}