Image1= new Image(0,0)
Image1.src = "servchart1a.gif"
Image2 = new Image(0,0)
Image2.src = "servchart1b.gif"

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

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

Image3= new Image(0,0)
Image3.src = "servchart2a.gif"
Image4 = new Image(0,0)
Image4.src = "servchart2b.gif"

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

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

Image5= new Image(0,0)
Image5.src = "servchart3a.gif"
Image6 = new Image(0,0)
Image6.src = "servchart3b.gif"

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

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

Image7= new Image(0,0)
Image7.src = "servchart4a.gif"
Image8 = new Image(0,0)
Image8.src = "servchart4b.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 = "servchart5a.gif"
Image10 = new Image(0,0)
Image10.src = "servchart5b.gif"

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

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

Image11= new Image(0,0)
Image11.src = "servchart6a.gif"
Image12 = new Image(0,0)
Image12.src = "servchart6b.gif"

function SwapOutf() {
document.f.src = Image12.src; return true;
}

function SwapBackf() {
document.f.src = Image11.src; return true;
}

Image13= new Image(0,0)
Image13.src = "servchart7a.gif"
Image14 = new Image(0,0)
Image14.src = "servchart7b.gif"

function SwapOutg() {
document.g.src = Image14.src; return true;
}

function SwapBackg() {
document.g.src = Image13.src; return true;
}