/*
// @version    0.0.3
// @author     bin
// @update     2010-1-2
// @comment    change div style display
// @Parameters Parent_div_id
*/
function div_display_change(Parent_div_id,a){
 var demo = document.getElementById(Parent_div_id);
 var divArray = demo.getElementsByTagName("div");
 for (var i=0;i<divArray.length;i++) {
  if (divArray[i].id == a) {
   divArray[i].style.display='';
  }else {
   divArray[i].style.display='none';
  }
 }
}