var slidenumB
var slidetrackB = 1
var slidenumD
var slidetrackD = 1
var slidenumG
var slidetrackG = 1
var slidenumJaecks
var slidetrackJaecks = 1
var slidenumL
var slidetrackL = 1
var slidenumLu
var slidetrackLu = 1
var slidenumPardue
var slidetrackPardue = 1
var slidenumPerkel
var slidetrackPerkel = 1
var slidenumScroth
var slidetrackScroth = 1
var slidenumS
var slidetrackS = 1
var slidenumUrso
var slidetrackUrso = 1
var slidenumW
var slidetrackW = 1


function ChangeBlas(slidenumB) {
document.blasmain.src="slide-show/blas-slide" + slidenumB + ".jpg";
slidetrackB = slidenumB;
}

function NextBlas() {
slidetrackB = ++slidetrackB;
if (slidetrackB > 8)
    slidetrackB = 1;
document.blasmain.src="slide-show/blas-slide" + slidetrackB + ".jpg";
}	

function ChangeDevers(slidenumD) {
document.deversmain.src="slide-show/devers-slide" + slidenumD + ".jpg";
slidetrackD = slidenumD;
}

function NextDevers() {
slidetrackD = ++slidetrackD;
if (slidetrackD > 12)
    slidetrackD = 1;
document.deversmain.src="slide-show/devers-slide" + slidetrackD + ".jpg";
}

function ChangeGoodman(slidenumG) {
document.goodmanmain.src="slide-show/goodman-slide" + slidenumG + ".jpg";
slidetrackG = slidenumG;
}

function NextGoodman() {
slidetrackG = ++slidetrackG;
if (slidetrackG > 15)
    slidetrackG = 1;
document.goodmanmain.src="slide-show/goodman-slide" + slidetrackG + ".jpg";
}

function ChangeJaecks(slidenumJaecks) {
document.jaecksmain.src="slide-show/jaecks-slide" + slidenumJaecks + ".jpg";
slidetrackJaecks = slidenumJaecks;
}

function NextJaecks() {
slidetrackJaecks = ++slidetrackJaecks;
if (slidetrackJaecks > 12)
    slidetrackJaecks = 1;
document.jaecksmain.src="slide-show/jaecks-slide" + slidetrackJaecks + ".jpg";
}

function ChangeLaird(slidenumL) {
document.lairdmain.src="slide-show/laird-slide" + slidenumL + ".jpg";
slidetrackL = slidenumL;
}

function NextLaird() {
slidetrackL = ++slidetrackL;
if (slidetrackL > 13)
    slidetrackL = 1;
document.lairdmain.src="slide-show/laird-slide" + slidetrackL + ".jpg";
}

function ChangeLundy(slidenumLu) {
document.lundymain.src="slide-show/lundy-slide" + slidenumLu + ".jpg";
slidetrackLu = slidenumLu;
}

function NextLundy() {
slidetrackLu = ++slidetrackLu;
if (slidetrackLu > 9)
    slidetrackLu = 1;
document.lundymain.src="slide-show/lundy-slide" + slidetrackLu + ".jpg";
}

function ChangePardue(slidenumPardue) {
document.parduemain.src="slide-show/pardue-slide" + slidenumPardue + ".jpg";
slidetrackPardue = slidenumPardue;
}

function NextPardue() {
slidetrackPardue = ++slidetrackPardue;
if (slidetrackPardue > 10)
    slidetrackPardue = 1;
document.parduemain.src="slide-show/pardue-slide" + slidetrackPardue + ".jpg";
}

function ChangePerkel(slidenumPerkel) {
document.perkelmain.src="slide-show/perkel-slide" + slidenumPerkel + ".jpg";
slidetrackPerkel = slidenumPerkel;
}

function NextPerkel() {
slidetrackPerkel = ++slidetrackPerkel;
if (slidetrackPerkel > 10)
    slidetrackPerkel = 1;
document.perkelmain.src="slide-show/perkel-slide" + slidetrackPerkel + ".jpg";
}

function ChangeSchroth(slidenumSchroth) {
document.schrothmain.src="slide-show/schroth-slide" + slidenumSchroth + ".jpg";
slidetrackSchroth = slidenumSchroth;
}

function NextSchroth() {
slidetrackSchroth = ++slidetrackSchroth;
if (slidetrackSchroth > 11)
    slidetrackSchroth = 1;
document.schrothmain.src="slide-show/schroth-slide" + slidetrackSchroth + ".jpg";
}		


function ChangeSmigrod(slidenumS) {
document.smigrodmain.src="slide-show/smigrod-slide" + slidenumS + ".jpg";
slidetrackS = slidenumS;
}

function NextSmigrod() {
slidetrackS = ++slidetrackS;
if (slidetrackS> 4)
    slidetrackS = 1;
document.smigrodmain.src="slide-show/smigrod-slide" + slidetrackS + ".jpg";
}

function ChangeUrso(slidenumUrso) {
document.ursomain.src="slide-show/urso-slide" + slidenumUrso + ".jpg";
slidetrackUrso = slidenumUrso;
}

function NextUrso() {
slidetrackUrso = ++slidetrackUrso;
if (slidetrackUrso > 10)
    slidetrackUrso = 1;
document.ursomain.src="slide-show/urso-slide" + slidetrackUrso + ".jpg";
}		

function ChangeWillis(slidenumW) {
document.willismain.src="slide-show/willis-slide" + slidenumW + ".jpg";
slidetrackW = slidenumW;
}

function NextWillis() {
slidetrackW = ++slidetrackW;
if (slidetrackW > 5)
    slidetrackW = 1;
document.willismain.src="slide-show/willis-slide" + slidetrackW + ".jpg";
}