function ChangeText(obj,text ) {
        if (obj) {
            if(obj.value==  text ) {
                obj.style.color = "#777777";
            }
        }
    }
    function EnterText(obj , text) {
        if (obj ) {
                
            if(obj.value==  text) {
                obj.value = "";
            }
        }
    }
    function RemoveText(obj , text) {
        if (obj ) {
                
            if(obj.value==  "" ) {
                obj.value = text;
            }
        }
    }
    function ChangeDisabled(obj ,flg) {
        if (obj) {
            if (flg ) {
              obj.removeAttribute("disabled");
            }else {
              obj.setAttribute("disabled","disabled");
            }
        }
    }