$(document).ready(function(){
    $("#editmodus").click(toggle_edit_mode);
});

function toggle_edit_mode() {
    if ($("#editmodus").attr("src").lastIndexOf("noedit") > -1) {
         location.href = "/home";
         window.name = "kora";
    }
    else {
        location.href = "/home/edit";
        window.name = "koraedit";
    }
}