function showBorder(divObj, menuStr){
    clearAllSelection(menuStr);
    divObj.style.border = "1px solid #000000";
}

function removeBorder(divObj){
    divObj.style.border = "1px solid #F4F4F4";	
}

function clearAllSelection(menuStr){
    if(menuStr == "invite"){
        document.getElementById("inviteDiv").style.border = "1px solid #F4F4F4";
        document.getElementById("getUrlDiv").style.border = "1px solid #F4F4F4";
    }else if(menuStr == "tools"){
        document.getElementById("freeDiv").style.border = "1px solid #F4F4F4";
        document.getElementById("rectDiv").style.border = "1px solid #F4F4F4";
        document.getElementById("lineDiv").style.border = "1px solid #F4F4F4";
        document.getElementById("circleDiv").style.border = "1px solid #F4F4F4";
        document.getElementById("textDiv").style.border = "1px solid #F4F4F4";
        document.getElementById("eraseDiv").style.border = "1px solid #F4F4F4";
    }else if(menuStr == "files"){
        document.getElementById("uploadDiv").style.border = "1px solid #F4F4F4";
        document.getElementById("saveDiv").style.border = "1px solid #F4F4F4";
        document.getElementById("printDiv").style.border = "1px solid #F4F4F4";
        document.getElementById("emailDiv").style.border = "1px solid #F4F4F4";
        document.getElementById("removeDiv").style.border = "1px solid #F4F4F4";
    }
}