var onecount;
onecount=0;
subcat = new Array();
subcat[0] = new Array('','电源公司','');
subcat[1] = new Array('产品博览','电测仪器公司','产品博览');
subcat[2] = new Array('产品博览','电测仪器公司','产品博览');
subcat[3] = new Array('产品博览','电能仪表公司','产品博览');
onecount=4;
function changebsort(kindid)
{
document.myform.ssort.length = 0; 
var kindid=kindid;
var i;
for (i=0;i < onecount; i++)
{
if (subcat[i][1] == kindid)
{ 
document.myform.ssort.options[document.myform.ssort.length] = new Option(subcat[i][0], subcat[i][2]);
}
}
}