//**隐藏部件*/
function ShowHideItem(Obj){
  var k = document.all.item(Obj);
  if(k.style.display == "none")
    k.style.display = "block";
  else
    k.style.display = "none";
}
//-------------------------------------------------------------------------
//**全选/取消*/
function Select_All(form, subform){
  var flag = form.checked;
  var num = subform.length;
  if(num == undefined){
    if (flag)
      subform.checked = true;
    else
      subform.checked = false;}
  else{
    var i;
    if(flag){
      for (i=0; i<num; i++)
        subform[i].checked = true;}
    else{
      for (i=0; i<num; i++)
        subform[i].checked = false;}
  }
}
//-------------------------------------------------------------------------
function GetChecked(form){
  var checkNum = 0;
  with(form){
    for(var i=0; i<elements.length; i++)
      if(elements[i].type == "checkbox")
        if(elements[i].checked == true)
          checkNum++;}
  return checkNum;
}
//-------------------------------------------------------------------------
function GetChkNum(form, value)
{
	var CheckNum = 0;
	with(form)
	{
		for(var i=0; i<elements.length; i++)
			if(elements[i].type == "checkbox")
				if(elements[i].name == value)
					if(elements[i].checked == true)
						CheckNum++;
	}
	return CheckNum;
}