function changecolor(category) {
				
				var cat = category;
				var obj = document.getElementsByTagName('td');
				
				for(i=0;i<obj.length;i++){
					
					var Klasse = obj[i].className;
					var KlassenListe = Klasse.split(' ');
					
					
					if(Klasse.search(cat) != -1){
						
						if(KlassenListe[0] == "all1inactive"){
							
							var changeaktive1 = Klasse.replace(/all1inactive/g, "all1active");
							obj[i].className = changeaktive1;
							
							
						}else if(KlassenListe[0] == "all2inactive"){
							
							var changeaktive2 = Klasse.replace(/all2inactive/g, "all2active");
							obj[i].className = changeaktive2;
							
						}else if(KlassenListe[0] == "freeinactive"){
							
							var freeactive = Klasse.replace(/freeinactive/g, "freeactive");
							obj[i].className = freeactive;
							
						}	
						
					}else{
						
						if(KlassenListe[0] == "all1active"){
							
							var changeinaktive1 = Klasse.replace(/all1active/g, "all1inactive");
							obj[i].className = changeinaktive1;
							
							
						}else if(KlassenListe[0] == "all2active"){
							
							var changeinaktive2 = Klasse.replace(/all2active/g, "all2inactive");
							obj[i].className = changeinaktive2;
							
						}else if(KlassenListe[0] == "freeactive"){
							
							var freeinactive = Klasse.replace(/freeactive/g, "freeinactive");
							obj[i].className = freeinactive;
							
						}	
						
					}
					
					

				}
				
			}