function fetchSub(cat_id) {
		var getstr ='category_id=' + encodeURI(cat_id) +'&sid='+Math.random();
		//alert(getstr)		
		document.getElementById("subcat").innerHTML='<font color = "red">loading..</font>';
		ajaxpack.postAjaxRequest("/subcat.php", getstr, display_subcategory, "txt", '');
	}
function display_subcategory() {
  var myajax = ajaxpack.ajaxobj
  var myfiletype = ajaxpack.filetype
  var products_page = ajaxpack.callback_parameter;
  if (myajax.readyState == 4){ //if request of file completed
    if (myfiletype=="txt") {
		//alert(myajax.responseText)
		document.getElementById("subcat").innerHTML = myajax.responseText			
	}
  }
}