var initialtab = [1, "sc1"]

    var previoustab = "";
    var intv;

    function showmenu(cid, aobject)
        {
        stopTimer();
         var clen=aobject.offsetLeft
        highlighttab(aobject)

        if (previoustab != "")
            document.getElementById(previoustab).style.display = "none"

        document.getElementById(cid).style.display = "block"
        document.getElementById(cid).style.position = "absolute"
		
        previoustab = cid
	  

		 if(cid=="sc5")
			  {
		       document.getElementById(cid).style.left =clen
              } 
			else if (cid=="sc8")
			{document.getElementById(cid).style.right ="100px"
			}
			else if (cid=="sc7")
			{document.getElementById(cid).style.right ="200px"
			}
			else if (cid=="sc6")
			{document.getElementById(cid).style.right ="300px"
			}
			else
				{document.getElementById(cid).style.left =clen
			    }
        }

    function highlighttab(aobject)
        {
        stopTimer();

        if (typeof tabobjlinks == "undefined")
            collectddimagetabs()

        for (i = 0; i < tabobjlinks.length; i++)
            tabobjlinks[i].className = ""

        aobject.className = "curr"
        }

    function collectddimagetabs()
        {
        var tabobj = document.getElementById("nav1")
        tabobjlinks = tabobj.getElementsByTagName("A")
        }

    function do_onload()
        {
        collectddimagetabs()
        showmenu(initialtab[1], tabobjlinks[initialtab[0] - 1])
        }

    function startTimer()
        {
        intv = setTimeout("showmenu(initialtab[1], tabobjlinks[initialtab[0]-1])", 2000);
        }

    function stopTimer()
        {
        clearTimeout(intv);
        }

function show_ch(ch_id)
	{
	    var j;
		for(j=1;j<4;j++)
		{
			document.getElementById('ch_'+j+'').style.display = 'none';
			document.getElementById('class_'+j+'').className= "";
		}
		document.getElementById('ch_'+ ch_id+'').style.display = 'block';
		document.getElementById('class_'+ch_id+'').className ="ao";
	}

function show_sub(ch_id)
	{
	    var j;
		for(j=1;j<4;j++)
		{
			document.getElementById('ch_'+j+'').style.display = 'none';
			document.getElementById('aclass_'+j+'').className= "";
		}
		document.getElementById('ch_'+ ch_id+'').style.display = 'block';
		document.getElementById('aclass_'+ch_id+'').className= "ha";
	}


function show_ad(adid)
	{
		var adid;
	    var k;
		for(k=1;k<6;k++)
		{
			document.getElementById('ad_'+k).style.display = 'none';
			document.getElementById('adclass_'+k+'').className= "";
		}
		document.getElementById('ad_'+ adid).style.display = 'block';
		document.getElementById('adclass_'+adid+'').className= "za";
	} 
	
	

	function show_gz(gzid)
	{
		
		var bcdda=1;
		if (document.getElementById('gz_'+ gzid).style.display == "block")
		{
	     bcdda=0;
		}
		
	    var k;
		for(k=1;k<11;k++)
		{
			document.getElementById('gz_'+k).style.display = 'none';
			document.getElementById('gzclass_'+k+'').className= "";
		}
		document.getElementById('gz_'+ gzid).style.display = ( bcdda==1) ? "block" : "none" ;
		
		document.getElementById('gzclass_'+gzid+'').className= "gza";
	} 
	
function show_train(trid)
	{
		var trid;
	    var k;
		for(k=1;k<5;k++)
		{
			document.getElementById('tr_'+k).style.display = 'none';
			document.getElementById('trclass_'+k+'').className= "";
		}
		document.getElementById('tr_'+ trid).style.display = 'block';
		document.getElementById('trclass_'+trid+'').className= "rtbox";
	} 
	
function dis_train()
	{
	    var k;
		for(k=1;k<5;k++)
		{
			document.getElementById('tr_'+k).style.display = 'none';
			document.getElementById('trclass_'+k+'').className= "";
		}
	} 
	
	function show_school(schid)
	{
		var schid;
	    var k;
		for(k=1;k<4;k++)
		{
			document.getElementById('sch_'+k).style.display = 'none';
		}
		document.getElementById('sch_'+ schid).style.display = 'block';
	} 
	
	
	function show_index(inid)
	{
		var inid;
	    var k;
		for(k=1;k<12;k++)
		{
			document.getElementById('in_'+k).style.display = 'none';
		}
		document.getElementById('in_'+ inid).style.display = 'block';
		
	} 
	function dis_index(disid)
	{
		var disid;
	    var k;
		for(k=1;k<12;k++)
		{
			document.getElementById('in_'+k).style.display = 'none';
		}
		
	} 
	function show_kh()
	{
		
			document.getElementById('kh').style.display = 'block';
		
	} 
	function dis_kh()
	{
		
			document.getElementById('kh').style.display = 'none';
		
	} 



function check_oudate()
{
  
}

function show_info(in_id)
{
	    var f;
		for(f=1;f<3;f++)
		{
			document.getElementById('info_'+f+'').style.display = 'none';
			document.getElementById('in_'+f+'').className= "";
		}
		document.getElementById('info_'+ in_id+'').style.display = 'block';
		document.getElementById('in_'+in_id+'').className ="ao";
}