function SwitchShowHide(obj1,obj2){
   
    var el1 = document.getElementById(obj1);
    var el2 = document.getElementById(obj2);
           
    if(el1.style.display == "block") {
        el1.style.display = "none";
        el2.style.display = "block";
    }
    else {
        el1.style.display = "block";
        el2.style.display = "none";
    }
}