var arrPressure = 
    new Array("", "Anti-Slip", "Conspicuity",  "G-I-D Press-on", "Vinyl", "Vinyl Press-on");
 var arrNon = 
    new Array("", "Glowflex", "Narrow-Weave", "Plastic", "Polyethylene", "Warnoline");
 var arrAlltapes = 
    new Array("", "Anti-Slip", "Conspicuity",  "G-I-D Press-on", "Glowflex", "Narrow-Weave", "Plastic", "Polyethylene", "Vinyl", "Vinyl Press-on", "Warnoline");

 function setMaterial() {
  var selectType = document.theForm.tapetype;
  var selectMaterial = document.theForm.pother3;
  var theType = selectType.options[selectType.selectedIndex].value;
//  var theType = selectType.options.selectedIndex;

  
  if (theType == "1"){
     selectMaterial.options.length = 0;
     for(var i=0; i<arrPressure.length; i++)
       selectMaterial.options[selectMaterial.options.length] 
          = new Option(arrPressure[i]);
       selectMaterial.options[0].selected = true;
     }

  if (theType == "2"){
     var selectMaterial = document.theForm.pother3;
     selectMaterial.options.length = 0;
     for(var i=0; i<arrNon.length; i++)
       selectMaterial.options[selectMaterial.options.length] 
          = new Option(arrNon[i]);
       selectMaterial.options[0].selected = true;
     }

  if (theType == "alltapes"){
     var selectMaterial = document.theForm.pother3;
     selectMaterial.options.length = 0;
     for(var i=0; i<arrAlltapes.length; i++)
       selectMaterial.options[selectMaterial.options.length] 
          = new Option(arrAlltapes[i]);
       selectMaterial.options[0].selected = true;
     }
 

}
  

   function clearIt() {
  var selectType = document.theForm.main;
  var selectMaterial = document.theForm.pother3;
     selectType.options.length = 6;
     selectMaterial.options.length = 0;
 }