// JavaScript Document
var flag1=false
function imgchange1()
{
	if (flag1) document.all.myimg1.src="n_engineering/mm2v.gif"
	else document.all.myimg1.src="n_engineering/mm2g.gif"
	flag1=!flag1
}
var flag2=false
function imgchange2()
{
	if (flag2) document.all.myimg2.src="n_engineering/h3.gif"
	else document.all.myimg2.src="n_engineering/h4.gif"
	flag2=!flag2
}
var flag3=false
function imgchange3()
{
	if (flag3) document.all.myimg3.src="n_engineering/h3.gif"
	else document.all.myimg3.src="n_engineering/h4.gif"
	flag3=!flag3
}
var flag4=false
function imgchange4()
{
	if (flag4) document.all.myimg4.src="n_engineering/h3.gif"
	else document.all.myimg4.src="n_engineering/h4.gif"
	flag4=!flag4
}
var flag5=false
function imgchange5()
{
	if (flag5) document.all.myimg5.src="n_engineering/h3.gif"
	else document.all.myimg5.src="n_engineering/h4.gif"
	flag5=!flag5
}
var flag=false
function imgchange()
{
	if (flag) document.all.myimg.src="pik/next6.gif"
	else document.all.myimg.src="pik/next.gif"
	flag=!flag
}
var flagb=false
function imgchangeb()
{
	if (flagb) document.all.myimgb.src="pik/bac5.gif"
	else document.all.myimgb.src="pik/bac.gif"
	flagb=!flagb
}

var flagbs=false
function imgchangebs()
{
	if (flagbs) document.all.myimgbs.src="prom/bac5.gif"
	else document.all.myimgbs.src="prom/bac.gif"
	flagbs=!flagbs
}
var flags=false
function imgchanges()
{
	if (flags) document.all.myimgs.src="prom/next6.gif"
	else document.all.myimgs.src="prom/next.gif"
	flags=!flags
}