function div1Show(x){

 x.style.opacity=0.6;

hideAll();

document.getElementById("mydiv1").style.display = "";

document.getElementById("tab1c").style.display = "";

document.getElementById("tab1").style.display = "none";

document.getElementById("tab2").style.display = "";

document.getElementById("tab3").style.display = "";

document.getElementById("tab4").style.display = "";

document.getElementById("tab5").style.display = "";

}

function div2Show(x){

  x.style.opacity=0.6;

hideAll();

document.getElementById("mydiv2").style.display = "";

document.getElementById("tab2c").style.display = "";

document.getElementById("tab1").style.display = "";

document.getElementById("tab2").style.display = "none";

document.getElementById("tab3").style.display = "";

document.getElementById("tab4").style.display = "";

document.getElementById("tab5").style.display = "";

}

function div3Show(x){

  x.style.opacity=0.6;

hideAll();

document.getElementById("mydiv3").style.display = "";

document.getElementById("tab3c").style.display = "";

document.getElementById("tab1").style.display = "";

document.getElementById("tab2").style.display = "";

document.getElementById("tab3").style.display = "none";

document.getElementById("tab4").style.display = "";

document.getElementById("tab5").style.display = "";

}

function div4Show(x){

  x.style.opacity=0.6;

hideAll();

document.getElementById("mydiv4").style.display = "";

document.getElementById("tab4c").style.display = "";

document.getElementById("tab1").style.display = "";

document.getElementById("tab2").style.display = "";

document.getElementById("tab3").style.display = "";

document.getElementById("tab4").style.display = "none";

document.getElementById("tab5").style.display = "";

}

function div5Show(x){

  x.style.opacity=0.6;

hideAll();

document.getElementById("mydiv5").style.display = "";

document.getElementById("tab5c").style.display = "";

document.getElementById("tab1").style.display = "";

document.getElementById("tab2").style.display = "";

document.getElementById("tab3").style.display = "";

document.getElementById("tab4").style.display = "";

document.getElementById("tab5").style.display = "none";

}

function hideAll(){

document.getElementById("mydiv1").style.display = "none";

document.getElementById("mydiv2").style.display = "none";

document.getElementById("mydiv3").style.display = "none";

document.getElementById("mydiv4").style.display = "none";

document.getElementById("mydiv5").style.display = "none";

document.getElementById("tab1c").style.display = "none";

document.getElementById("tab2c").style.display = "none";

document.getElementById("tab3c").style.display = "none";

document.getElementById("tab4c").style.display = "none";

document.getElementById("tab5c").style.display = "none";

}