var i = 0;
var imgstring = new Array ;
var maximum = imagearray.length-1 ;
for (i=0; i < maximum; i++) {
imgstring[i] = new Image() ;
imgstring[i].src = imagearray[i] ;
}
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function gallery(){
if (i == 0){
document.gallery.previous.value=" " ;
document.img.src = imagearray[i] ;
}
}
function previmg(){
if (i != 0) {
i -- ;
document.img.src = imagearray[i] ;
document.gallery.next.value = "Next"; }
if (i == 0) {
document.gallery.previous.value=" " ;
}
}
function nextimg(){
if (i != maximum ) {
i ++ ;
document.gallery.previous.value="Previous" ;
document.img.src = imagearray[i] ;
}
if (i == maximum){
document.gallery.next.value=" ";
}
}
function firstimg(){
i = 0 ;
document.img.src = imagearray[i] ;
document.gallery.previous.value=" ";
document.gallery.next.value="Next";
}
function lastimg(){
i = maximum ;
document.img.src = imagearray[i] ;
document.gallery.next.value=" " ;
document.gallery.previous.value="Previous" ;
}