function setComHiddenAllb()
{
    document.getElementById("d1").className="m_nav_1";
	document.getElementById("d2").className="m_nav_2";
	document.getElementById("d3").className="m_nav_3";
	document.getElementById("d4").className="m_nav_4";
	document.getElementById("d5").className="m_nav_5";
	
	//document.getElementById("comall").className="gome_compositor02";
	document.getElementById("tabled1").style.display="none";
	document.getElementById("tabled2").style.display="none";
	document.getElementById("tabled3").style.display="none";
	document.getElementById("tabled4").style.display="none";
	document.getElementById("tabled5").style.display="none";
	//document.getElementById("tablecomall").style.display="none";
}
function setComShowb(id)
{
	

	if(id =="d1"){
	setComHiddenAllb();
	document.getElementById("d1").className="m_nav_1_f";
	document.getElementById("table"+id).style.display="";
	}
	if(id == "d2"){
	setComHiddenAllb();
	document.getElementById("d2").className="m_nav_2_f";
	document.getElementById("table"+id).style.display="";
	}
	if(id == "d3"){
	setComHiddenAllb();
	document.getElementById("d3").className="m_nav_3_f";
	document.getElementById("table"+id).style.display="";
	}
	if(id == "d4"){
	setComHiddenAllb();
	document.getElementById("d4").className="m_nav_4_f";
	document.getElementById("table"+id).style.display="";
	}
	if(id == "d5"){
	setComHiddenAllb();
	document.getElementById("d5").className="m_nav_5_f";
	document.getElementById("table"+id).style.display="";
    }
}

function simplePreloadb()
{
  var args = simplePreloadb.arguments;
  document.imageArray = new Array(args.length);
  for(var i=0; i<args.length; i++)
  {
    document.imageArray[i] = new Image;
    document.imageArray[i].src = args[i];
  }
}













function setComHiddenAlla()
{
	document.getElementById("p1").className="zk_4";
	document.getElementById("p2").className="zk_4";
	document.getElementById("p3").className="zk_4";
	document.getElementById("p4").className="zk_4";
	//document.getElementById("comall").className="gome_compositor02";
	document.getElementById("tablep1").style.display="none";
	document.getElementById("tablep2").style.display="none";
	document.getElementById("tablep3").style.display="none";
	document.getElementById("tablep4").style.display="none";
	//document.getElementById("tablecomall").style.display="none";
}
function setComShowa(id)
{
	setComHiddenAlla();
	document.getElementById(id).className="zk_3";
	document.getElementById("table"+id).style.display="";
}

function simplePreloada()
{
  var args = simplePreloada.arguments;
  document.imageArray = new Array(args.length);
  for(var i=0; i<args.length; i++)
  {
    document.imageArray[i] = new Image;
    document.imageArray[i].src = args[i];
  }
}












function setComHiddenAllo()
{
	document.getElementById("b1").className="zk_6";
	document.getElementById("b2").className="zk_6";
	document.getElementById("b3").className="zk_6";
	document.getElementById("b4").className="zk_6";
	//document.getElementById("comall").className="gome_compositor02";
	document.getElementById("tableb1").style.display="none";
	document.getElementById("tableb2").style.display="none";
	document.getElementById("tableb3").style.display="none";
	document.getElementById("tableb4").style.display="none";
	//document.getElementById("tablecomall").style.display="none";
}
function setComShowo(id)
{
	setComHiddenAllo();
	document.getElementById(id).className="zk_5";
	document.getElementById("table"+id).style.display="";
}

function simplePreloado()
{
  var args = simplePreloado.arguments;
  document.imageArray = new Array(args.length);
  for(var i=0; i<args.length; i++)
  {
    document.imageArray[i] = new Image;
    document.imageArray[i].src = args[i];
  }
}






function setComHiddenAllc()
{
	document.getElementById("c1").className="zk_8";
	document.getElementById("c2").className="zk_8";
	document.getElementById("c3").className="zk_8";
	document.getElementById("c4").className="zk_8";
	//document.getElementById("comall").className="gome_compositor02";
	document.getElementById("tablec1").style.display="none";
	document.getElementById("tablec2").style.display="none";
	document.getElementById("tablec3").style.display="none";
	document.getElementById("tablec4").style.display="none";
	//document.getElementById("tablecomall").style.display="none";
}
function setComShowc(id)
{
	setComHiddenAllc();
	document.getElementById(id).className="zk_7";
	document.getElementById("table"+id).style.display="";
}

function simplePreloadc()
{
  var args = simplePreloadc.arguments;
  document.imageArray = new Array(args.length);
  for(var i=0; i<args.length; i++)
  {
    document.imageArray[i] = new Image;
    document.imageArray[i].src = args[i];
  }
}
 function changeCollege(college_id)
  {		
            document.stu_add_form.major.length = 0;
            var id=id;
            var j;
            document.stu_add_form.major.options[0] = new Option('==二級分類==',''); // label的value为空 ' '
            for (j=0;j < majorCount; j++)  // 从0开始判断
            {
              if (form_majors[j][1] == college_id)  // if college_id等于选择的学院的id
               {
                         document.stu_add_form.major.options[document.stu_add_form.major.length] = new Option(form_majors[j][2], form_majors[j][0]);
               }
            }
  }