Image1= new Image(200,95)
Image1.src = "explorchart1a.gif"
Image2 = new Image(200,95)
Image2.src = "explorchart1b.gif"

function SwapOuta() {
document.a.src = Image2.src; return true;
}

function SwapBacka() {
document.a.src = Image1.src; return true;
}

Image3= new Image(200,95)
Image3.src = "explorchart2a.gif"
Image4 = new Image(200,95)
Image4.src = "explorchart2b.gif"

function SwapOutb() {
document.b.src = Image4.src; return true;
}

function SwapBackb() {
document.b.src = Image3.src; return true;
}

Image5= new Image(200,91)
Image5.src = "explorchart3a.gif"
Image6 = new Image(200,91)
Image6.src = "explorchart3b.gif"

function SwapOutc() {
document.c.src = Image6.src; return true;
}

function SwapBackc() {
document.c.src = Image5.src; return true;
}

Image7= new Image(200,91)
Image7.src = "explorchart4a.gif"
Image8 = new Image(200,91)
Image8.src = "explorchart4b.gif"

function SwapOutd() {
document.d.src = Image8.src; return true;
}

function SwapBackd() {
document.d.src = Image7.src; return true;
}

Image9= new Image(0,0)
Image9.src = "explorchart5a.gif"
Image10 = new Image(0,0)
Image10.src = "explorchart5b.gif"

function SwapOute() {
document.e.src = Image10.src; return true;
}

function SwapBacke() {
document.e.src = Image9.src; return true;
}