var onecount;
onecount=0;
subcat = new Array();
subcat[0] = new Array('','养殖技术','');
subcat[1] = new Array('','种植技术','');
subcat[2] = new Array('','病害防治','');
subcat[3] = new Array('','企业展示','');
subcat[4] = new Array('','','');
onecount=5;
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]);
}
}
}