function toggle(divname){ 
						
		

                                    var mydiv = document.getElementById(divname); 
							
                                    if(mydiv.style.display == 'none' || mydiv.style.display == ''){ 

                                                mydiv.style.display = 'block';

                                    }else{ 

                                                mydiv.style.display = 'none'; 

                                    } 
									
                        }