var regionsArray = new Array(30); 
Specker_Cable = new Array("Red Lion","Laser","Nectech");
Power_Cable = new Array("Red Lion");
Signal_Cable = new Array("Red Lion","Nectech");
Automobile_Cable = new Array("SJK","Laser");
Electri_Cable = new Array("Fuhrer");
Other_Cable = new Array("National");


function updateCountries(n,selected) { 
var _F=document.ex_f1;
var arr= eval(selected );
var current = _F.brand.options.length; 
for (var j=current;j>0;j--) _F.brand.options[j] = null; 
for (var i=0;i<arr.length;i++) _F.brand.options[_F.brand.options.length] = new Option(arr[i],arr[i]); 
_F.brand.options[0].text="Selecte Brand";
}