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  <title>Smart selects</title>
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<script language="javascript" type="text/javascript">
var arr = [
    ["Valg 1",[
        ["2. valg 1 (1)",
            ["3. valg 1 (1-1)","3. valg 2 (1-1)","3. valg 3 (1-1)","3. valg 4 (1-1)"]],
        ["2. valg 2 (1)",
            ["3. valg 1 (1-2)","3. valg 2 (1-2)","3. valg 3 (1-2)"]],
        ["2. valg 3 (1)",
            ["3. valg 1 (1-3)","3. valg 2 (1-3)","3. valg 3 (1-3)","3. valg 4 (1-3)"]]]],
    ["Valg 2",[
        ["2. valg 1 (2)",
            ["3. valg 1 (2-1)","3. valg 2 (2-1)","3. valg 3 (2-1)","3. valg 4 (2-1)"]],
        ["2. valg 2 (2)",
            ["3. valg 1 (2-2)","3. valg 2 (2-2)"]],
        ["2. valg 3 (2)",
            ["3. valg 1 (2-3)","3. valg 2 (2-3)","3. valg 3 (2-3)","3. valg 4 (2-3)","3. valg 5 (2-3)","3. valg 6 (2-3)","3. valg 7 (2-3)","3. valg 8 (2-3)","3. valg 9 (2-3)","3. valg 10 (2-3)","3. valg 11 (2-3)","3. valg 12 (2-3)","3. valg 13 (2-3)","3. valg 14 (2-3)","3. valg 15 (2-3)","3. valg 16 (2-3)","3. valg 17 (2-3)","3. valg 18 (2-3)","3. valg 19 (2-3)","3. valg 20 (2-3)","3. valg 21 (2-3)"]],
        ["2. valg 4 (2)",
            ["3. valg 1 (2-4)","3. valg 2 (2-4)","3. valg 3 (2-4)","3. valg 4 (2-4)"]]]],
    ["Valg 3",[
        ["2. valg 1 (3)",
            ["3. valg 1 (3-1)","3. valg 2 (3-1)","3. valg 3 (3-1)"]],
        ["2. valg 2 (3)",
            ["3. valg 1 (3-2)","3. valg 2 (3-2)","3. valg 3 (3-2)"]],
        ["2. valg 3 (3)",
            ["3. valg 1 (3-3)","3. valg 2 (3-3)","3. valg 3 (3-3)"]],
        ["2. valg 4 (3)",
            ["3. valg 1 (3-4)","3. valg 2 (3-4)","3. valg 3 (3-4)"]],
        ["2. valg 5 (3)",
            ["3. valg 1 (3-5)","3. valg 2 (3-5)","3. valg 3 (3-5)"]]]]
];
//alert(arr1[1][1])
function initSels(){
    createOpts(document.getElementById('sel1'));
    createOpts(document.getElementById('sel3'));
}
function createOpts(sel){
    var s = new Array();
    var num = 0, txt = "arr";
    var ar = opt = null;
    var n = sel.selectedIndex;
    var args = createOpts.arguments.length;
    for(var i=1;args>i;i++){
        s[i-1] = document.getElementById(createOpts.arguments[i]);
        if(s[i-1]==sel)num=i;
    }
    if(args>1){
        if(s[num])sel = s[num];
        else return;
    }
    if(n==0&&args>1){
        for(i=num;args>i+1;i++){
            s[i].length = 0;
            opt = document.createElement('OPTION');
            s[i].appendChild(opt);
            opt.value = "";
            opt.text = "\74-- Vælg --";
        }
        return true
    };
    for(i=0;num>i;i++){
        txt+="["+(s[i].selectedIndex-1)+"][1]";
    }
    ar = eval(txt);
    sel.length = 0;
    opt = document.createElement('OPTION');
    sel.appendChild(opt);
  opt.value = "";
  opt.text = "-- Vælg --";
    for(i=0;ar.length>i;i++){
        opt = document.createElement('OPTION');
        sel.appendChild(opt);
        if(typeof ar[i] == 'object'){
          opt.value = ar[i][0];
          opt.text = ar[i][0];
        }else{
          opt.value = ar[i];
          opt.text = ar[i];
      }
    }
    if(args>num+2){
        for(i=num+1;args-1>i;i++){
            s[i].length = 0;
            opt = document.createElement('OPTION');
            s[i].appendChild(opt);
            opt.value = "";
            opt.text = "\74-- Vælg --";
        }
    }
}
</script>
</head>
<body style="FONT-SIZE: 12px" onload="initSels()">
<h1 style="LINE-HEIGHT: 0.8">Working demo #4 beta2</h1>
Afhængige selects<br><br>
<div style="TEXT-ALIGN: left">
<form name="sels" action="
http://roenving.users.whitehat.dk" onsubmit="return false;">
To afhængige selects:   
<select name="sel1" id="sel1" onchange="createOpts(this,'sel1','sel2');">
<option value="" selected>Vis alle</option>
</select>      
<select name="sel2" id="sel2">
<option value="" selected 
 ><-- Vælg --</option>
</select>      <br><br>
Tre afhængige selects:   
<select name="sel3" id="sel3" onchange="createOpts(this,'sel3','sel4','sel5');">
<option value="" selected>Vis alle</option>
</select>      
<select name="sel4" id="sel4" onchange="createOpts(this,'sel3','sel4','sel5');">
<option value="" selected><-- Vælg --</option>
</select>      
<select name="sel5" id="sel5">
<option value="" selected 
 ><-- Vælg --</option>
</select>      <br><br>
</form>
<br><br>
</div><br><br>
Pt. kan koden ses ved: <span class="i">Vis kode</span>,<br>
jeg vil snarest sørge for at den er tilgængelig kopierbar (som i de andre WD's)<br>
<span class="b">Bemærk</span>, at javascript-databasen er følsom overfor småfejl i [ / ] -erne ...
<br><br>
<h6><!-- WebWriter AutoDato -->Sidste opdatering  12.08.2003<!-- WW --></h6>
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