menu.js

本系统是为系部开发的实用考试系统


var headHeight = 22;var bodyHeight = 242;var objcount = 5;var step = 20;var moving = false;
function showme(obj1, obj2)
{
	if (moving)
		return;
	moving = true;
	for(i=0;i<document.all.tags('td').length;i++)
		if (document.all.tags('td')[i].className.indexOf('headtd') == 0)
			document.all.tags('td')[i].className = 'headtd1';
	obj2.className = 'headtd2';
	moveme(obj1);
}
function moveme(obj)
{
	idnumber = parseInt(obj.id.substr(4));
	objtop = headHeight * (idnumber - 1);
	objbuttom = bodyHeight + headHeight * (idnumber - 2);
	currenttop = parseInt(obj.style.top);
	if (currenttop >= objbuttom)
	{
		countid = 1;
		for(i=0;i<document.all.tags('div').length;i++)
			if (document.all.tags('div')[i].id == 'item'+countid+'body')
			{
				obj = document.all.tags('div')[i];
				objtop = headHeight * (countid - 1);
				if (countid == idnumber)
				{
					moveup(obj,objtop,false);
					break;
				}
				else
					moveup(obj,objtop,true);
				countid++;
			}
	}
	else if ((currenttop >= objtop) && (idnumber < objcount))
	{
		idnumber++;
		countid = objcount;
		for(i=document.all.tags('div').length-1;i>=0;i--)
			if (document.all.tags('div')[i].id == 'item'+countid+'body')
			{
				obj = document.all.tags('div')[i];
				objbuttom = bodyHeight + headHeight * (countid - 2);
				if (countid == idnumber)
				{
					movedown(obj,objbuttom,false);
					break;
				}
				else
					movedown(obj,objbuttom,true);
				countid--;
			}
	}
}
function moveup(obj,objtop,ismove)
{
	currenttop = parseInt(obj.style.top);
	if (currenttop > objtop)
	{
		obj.style.top = currenttop - step;
		setTimeout('moveup('+obj.id+','+objtop+','+ismove+')',1)
		return;
	}
	moving = ismove;
}
function movedown(obj,objbuttom,ismove)
{
	currenttop = parseInt(obj.style.top);
	if (currenttop < objbuttom)
	{
		obj.style.top = currenttop + step;
		setTimeout('movedown('+obj.id+','+objbuttom+','+ismove+')',1)
		return;
	}
	moving = ismove;
}


//左边是否显示菜单
function switchSysBar(){
    if (switchPoint.value==3){
        switchPoint.value=4
        document.all("suotu").src="../images/suotu2.gif";
        document.all("frmTitle").style.display="none"
    }else{
        switchPoint.value=3
        document.all("suotu").src="../images/suotu1.gif";
        document.all("frmTitle").style.display=""
    }
}