var SelectType=false ;

function checkselectall() {
	SelectType = !SelectType
	var ii = document.delform.Del_ID.length ;
    var i ;
	if (SelectType)
	{  document.delform.selectall.value="取消全选";
	   document.delform.selecttype.checked = true;
	   for (i=0;i<ii;i++)
	   {
	        document.delform.Del_ID[i].checked=true;
	   }
	}
	else
	{  document.delform.selectall.value="所定所有";
	   document.delform.selecttype.checked = false;
	   for (i=0;i<ii;i++)
	   {
	        document.delform.Del_ID[i].checked=false;
	   }
	}

}


function WinOpen(theURL,winName,features)
{
   window.open(theURL,winName,features);
}