Foros del Web - Ver Mensaje Individual - Listas Dependientes/Encadenadas, con sus valores desde una Base de Datos (AYUDA)

RucarMaN · #3 (**permalink**) 06/05/2010, 19:35

Código HTML:

Ver original<!-- TWO STEPS TO INSTALL NO DUPLICATES:
 
  1.  Copy the coding into the HEAD of your HTML document
  2.  Add the last code into the BODY of your HTML document  -->
 
<!-- STEP ONE: Paste this code into the HEAD of your HTML document  -->
 
<HEAD>
 
<SCRIPT LANGUAGE="JavaScript">
<!-- Original:  Denis Dijon ([email protected]) -->
<!-- Web Site:  http://213.177.134.20 -->
 
<!-- This script and many more are available free online at -->
<!-- The JavaScript Source!! http://javascript.internet.com -->
 
<!-- Begin
var OptLstTxt = new Array;
var OptLstVal = new Array;
var OptLen = 0;
function NoDupl(SelObjFrom, SelObjTo) {
var OldToVal = SelObjTo.options[SelObjTo.selectedIndex].value;
if (OptLen == 0) {
OptLen = SelObjFrom.length;
for (var i = 1; i < OptLen; i++) {
OptLstTxt[i] = SelObjFrom.options[i].text;
OptLstVal[i] = SelObjFrom.options[i].value;
   }
}
var j = 1;
for (var i = 1; i < OptLen; i++) {
if (OptLstVal[i] != SelObjFrom.options[SelObjFrom.selectedIndex].value) {
if (j == SelObjTo.length) {
SelObjTo.options[j] = new Option(OptLstTxt[i]);
}
else {
SelObjTo.options[j].text = OptLstTxt[i];
}
SelObjTo.options[j].value = OptLstVal[i];
if (OptLstVal[i] == OldToVal) {
SelObjTo.selectedIndex = j;
}
j++;
   }
}
if (SelObjTo.length > j)
SelObjTo.options[(SelObjTo.length - 1)] = null;
}
//  End -->
</script>
 
</HEAD>
 
<!-- STEP TWO: Copy this code into the BODY of your HTML document  -->
 
<BODY>
 
<form method="POST" name="MForm">
Try to select the same color:
<br>
<select name="Color_1" onChange="NoDupl(this,document.MForm.Color_2)">
<option selected value=''>Select your first prefered color</option>
<option value='R'>Red</option>
<option value='J'>Yellow</option>
<option value='G'>Green</option>
<option value='B'>Blue</option>
</select>
<select name="Color_2" onChange="NoDupl(this,document.MForm.Color_1)">
<option selected value=''>Select Second Prefered color</option>
<option value='R'>Red</option>
<option value='J'>Yellow</option>
<option value='G'>Green</option>
<option value='B'>Blue</option>
</select>
</form>
 
<p><center>
<font face="arial, helvetica" size"-2">Free JavaScripts provided<br>
by <a href="http://javascriptsource.com">The JavaScript Source</a></font>
</center><p>
 
<!-- Script Size:  2.34 KB -->

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este si te puede venir al pelo...