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var openImg = new Image();
openImg.src = "down.png";
var closedImg = new Image();
closedImg.src = "right.png";
function showBranch(branch){
var objBranch = document.getElementById(branch).style;
if(objBranch.display=="block")
objBranch.display="none";
else
objBranch.display="block";
}
function swapFolder(img){
objImg = document.getElementById(img);
if(objImg.src.indexOf('right.png')>-1)
objImg.src = openImg.src;
else
objImg.src = closedImg.src;
}
function changeSheets(whichSheet){
var c = document.Elements.length;
for(var i=0;i<c;i++)
var objBranch = document.getElementById(branch).style.display="block";
}
function showAll(){
var arrElements = document.getElementsByClassName("branch");
for(var i=0; i<arrElements.length; i++){
arrElements[i].style.display="block";
}
}
function closeAll(){
var arrElements = document.getElementsByClassName("branch");
for(var i=0; i<arrElements.length; i++){
arrElements[i].style.display="none";
}
}
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