var ViberMess = {
Showviber: function(event,block,objShow,objHide){
var d = document;
var statBlock = d.getElementById(block).style.display;
var statShow = d.getElementById(objShow).style.display;
var styleBlock = "block";
event.preventDefault?event.preventDefault(): event.returnValue=false;
if(statBlock == styleBlock){
d.getElementById(block).style.display="none";}else{
d.getElementById(block).style.display=styleBlock;}
if (statShow == "none"){
d.getElementById(objShow).style.display=styleBlock;
d.getElementById(objHide).style.display="none";}else{
d.getElementById(objShow).style.display="none";
d.getElementById(objHide).style.display=styleBlock;}}}