function get_model_code(){
    var param=location.href;
    var url=param.split('/');
    var kv=url[url.length-1].split('.');
    return kv[0];
}

function in_array(arr,str){
  var length=arr.length;
  for(var i=0;i<length;i++){
    if(arr[i]===str)return i;
  }
  return -1;
}

function set_active_link(){
	var param=location.href;
	var url=param.split('/');
	var kv=url[url.length-1].split('.');
	if(document.getElementById(kv[0])!=null)document.getElementById(kv[0]).className='on';
}