var emptySelect='---';function removeCSels(el){var s=$(el.parentNode).getElements('select'),f=false;for(var i=0;i<s.length;i++){if(el==s[i]){f=true;continue;}
if(f==true)s[i].parentNode.removeChild(s[i]);}}
function createCSelect(pid,el){removeCSels(el);if(pid==0||el.options[el.selectedIndex].text==emptySelect)return;var o=[],os=new Element('select',{'name':'category','onchange':'createCSelect(this.options[this.selectedIndex].value, this);'});for(var i=0;i<cOptions.length;i++)if(cOptions[i].pid==pid)o.push(cOptions[i].o);if(o.length){os.options.add(new Option(emptySelect,pid));for(var i=0;i<o.length;i++)os.options.add(o[i]);os.inject(el,'after');}}