var arr = new Array;

arr[0] = "pl_11_11";
arr[1] = "pl_12_03";
arr[2] = "pl_12_05";
arr[3] = "pl_12_08";
arr[4] = "pl_12_09";
arr[5] = "pl_12_10";
arr[6] = "pl_12_12";
arr[7] = "pl_12_13";
arr[8] = "pl_13_01";
arr[9] = "pl_13_04";
arr[10] = "pl_13_06";
arr[11] = "pl_13_07";
arr[12] = "pl_13_09";
arr[13] = "pl_21_04";
arr[14] = "pl_21_06";
arr[15] = "pl_22_06";
arr[16] = "pl_23_04";
arr[17] = "pl_23_09";
arr[18] = "pl_30_10";
arr[19] = "pl_35_09";
arr[20] = "pl_37_05";
arr[21] = "pl_g_03";
arr[22] = "pl_g_15";
arr[23] = "pl_g_16";
arr[24] = "pl_i_01";
arr[25] = "pl_i_02";
arr[26] = "pl_i_03";
arr[27] = "pl_i_05";
arr[28] = "pl_i_06";
arr[29] = "pl_i_08";
arr[30] = "pl_i_10";
arr[31] = "pl_i_14";
arr[32] = "pl_i_18";
arr[33] = "pl_i_19";
arr[34] = "pl_i_21";
arr[35] = "pl_i_22";
arr[36] = "pl_i_23";
arr[37] = "pl_v1_03";
arr[38] = "pl_v1_06";
arr[39] = "pl_v1_07";
arr[40] = "pl_v1_08";
arr[41] = "pl_v3_08";
arr[42] = "pl_v3_10";
arr[43] = "pl_v5_06";
arr[44] = "pl_v5_07";
arr[45] = "pl_v5_08";
arr[46] = "pl_v6_04";
arr[47] = "pl_v6_07";

now_hdn = "pl_11_11";
next_hdn = "pl_12_03";
prev_hdn = "pl_v6_07";


function headerOver(id){
    document.getElementById(id).src="/images/"+id+"_on.jpg";
}
function headerOut(id){
    document.getElementById(id).src="/images/"+id+"_off.jpg";
}

function plc(id){
    document.getElementById("pl_main").src="../images/"+id+".jpg";

    for(i=0;i<arr.length;i++){
        if(id==arr[i]){
            now_hdn = arr[i];
            next_hdn = arr[i+1];
            prev_hdn = arr[i-1];
        }
    }
}
function plov(id){
    document.getElementById(id).src="../images/"+id+"_on.jpg";
}
function plot(id){
    document.getElementById(id).src="../images/"+id+"_off.jpg";
}
function plcl_next(){
    document.getElementById("pl_main").src="../images/"+next_hdn+".jpg";

    for(i=0;i<arr.length;i++){
        if(next_hdn==arr[i]){
            if(i+1 > 47){
                next_hdn = "pl_11_11";
                prev_hdn = arr[i-1];
            }else{
                next_hdn = arr[i+1];
                prev_hdn = arr[i-1];
            }
            return;
        }
    }
}
function plcl_prev(){
    document.getElementById("pl_main").src="../images/"+prev_hdn+".jpg";

    for(i=0;i<arr.length;i++){
        if(prev_hdn==arr[i]){
            now_hdn = arr[i];
            if(i-1 < 0){
                next_hdn = arr[i+1];
                prev_hdn = "pl_v6_07";
            }else{
                next_hdn = arr[i+1];
                prev_hdn = arr[i-1];
            }
            return;
        }
    }
}