function showpic1(){
placeholder1 = document.getElementById("i1");
placeholder1.setAttribute("src","fileadmin/template/main/images/icons/icon_select-01.gif");
document.getElementById("c_imgnavtxt").innerHTML="<img src=\"fileadmin/template/main/images/pijl_R.gif\" /> exhibition info";
}
function hidepic1(){
placeholder1 = document.getElementById("i1");
placeholder1.setAttribute("src","fileadmin/template/main/images/icons/icon-01.gif");
document.getElementById("c_imgnavtxt").innerHTML="<img src=\"fileadmin/template/main/images/space.gif\" /> &nbsp;";
}

function showpic2(){
placeholder2 = document.getElementById("i2");
placeholder2.setAttribute("src","fileadmin/template/main/images/icons/icon_select-02.gif");
document.getElementById("c_imgnavtxt").innerHTML="<img src=\"fileadmin/template/main/images/pijl_R.gif\" /> merchandise";
}
function hidepic2(){
placeholder2 = document.getElementById("i2");
placeholder2.setAttribute("src","fileadmin/template/main/images/icons/icon-02.gif");
document.getElementById("c_imgnavtxt").innerHTML="<img src=\"fileadmin/template/main/images/space.gif\" /> &nbsp;";
}

function showpic3(){
placeholder3 = document.getElementById("i3");
placeholder3.setAttribute("src","fileadmin/template/main/images/icons/icon_select-03.gif");
document.getElementById("c_imgnavtxt").innerHTML="<img src=\"fileadmin/template/main/images/pijl_R.gif\" /> exhibition overview";
}
function hidepic3(){
placeholder3 = document.getElementById("i3");
placeholder3.setAttribute("src","fileadmin/template/main/images/icons/icon-03.gif");
document.getElementById("c_imgnavtxt").innerHTML="<img src=\"fileadmin/template/main/images/space.gif\" /> &nbsp;";
}