function changeFilter (selector) {
                    var element = selector.options[selector.selectedIndex].value;
                    var path = window.location.pathname;
                    
                    if(element == "all"){
                        location.href = path;
                    } else {
                    
                        location.href = path + "?band=" + element;
                    }
                }
                
                function changecdFilter (selector) {
                    var element = selector.options[selector.selectedIndex].value;
                    var path = window.location.pathname;
                    
                    if(element == "all"){
                        location.href = path;
                    } else {
                    
                        location.href = path + "?band=" + element;
                    }
                }
                
                function changemediaFilter (selector) {
                    var element = selector.options[selector.selectedIndex].value;
                    var path = window.location.pathname;
                    
                    if(element == "all"){
                        location.href = path;
                    } else {
                    
                        location.href = path + "?band=" + element;
                    }
                }
                
                function changemediadateFilter (selector) {
                    var wls = window.location.search;
                    var path = window.location.pathname;
                    wls = wls.replace(/&*year=[^&]*/,"").replace(/^\?&*$/,"");
                    
                    var element = selector.options[selector.selectedIndex].value;
                    if(element == "all"){
                        location.href = path;
                    } else {
                        if(wls) {
                            location.href = path + wls + "&year=" + element;
                        } else {
                            location.href = path + "?year=" + element;
                        }
                    }
                }
                
                function changepresseFilter (selector) {
                    var element = selector.options[selector.selectedIndex].value;
                    var path = window.location.pathname;
                    if(element == "all"){
                        location.href = path;
                    } else {
                    
                        location.href = path + "?band=" + element;
                    }
                }
                
                function changepressedateFilter (selector) {
                    var wls = window.location.search;
                    var path = window.location.pathname;
                    wls = wls.replace(/&*year=[^&]*/,"").replace(/^\?&*$/,"");
                    
                    var element = selector.options[selector.selectedIndex].value;
                    if(element == "all"){
                        location.href = path;
                    } else {
                        if(wls) {
                            location.href = path + wls + "&year=" + element;
                        } else {
                            location.href = path + "?year=" + element;
                        }
                    }
                }
                
                function changeKonzertDateFilter (selector) {
                    var wls = window.location.search;
                    var path = window.location.pathname;
                    
                    wls = wls.replace(/&*date=[^&]*/,"").replace(/^\?&*$/,"");
                    
                    var element = selector.options[selector.selectedIndex].value;
                    if(element == "all"){
                        location.href = path;
                    } else {
                        if(wls) {
                            location.href = path + wls + "&date=" + element;
                        } else {
                                location.href = path + "?date=" + element;
                        }
                    }
                }