var list = new Array();
    var list2 = new Array();
 list[0] = "tab1"; list[5] = "tab6"; 
 list[1] = "tab2"; list[6] = "tab7"; 
 list[2] = "tab3"; list[7] = "tab8"; 
 list[3] = "tab4"; list[8] = "tab9"; 
 list[4] = "tab5"; list[9] = "tab10";
 
 list2[0] = "str1"; list2[5] = "str6"; 
 list2[1] = "str2"; list2[6] = "str7"; 
 list2[2] = "str3"; list2[7] = "str8"; 
 list2[3] = "str4"; list2[8] = "str9"; 
 list2[4] = "str5"; list2[9] = "str10";

function tabset(name,s_){
    var node;
    var oDiv;
    for (i = 0; i < list.length; i++) {
        node = document.getElementById(list[i]);
        if (name == list[i]) {
         node.parentNode.setAttribute("id","clicked");
        } else {
         node.parentNode.setAttribute("id","ddoverlap");
        }
        oDiv = document.getElementById(s_);
        if(s_ == list2[i]){
           oDiv.style.display = 'block';
        }else{
           document.getElementById(list2[i]).style.display = 'none';
        }
    }
}