var currImg;
var nextImgNum;
var maxImg= 16;
var imgNum;

function showNext(){
  i= document.imgNumber.imgNumberFl.value
  imgNum = parseInt(i);
 	if (imgNum != maxImg) {
  		nextImgNum = imgNum + 1;
   }else{
  	nextImgNum = 1;
}

document.imgNumber.imgNumberFl.value = nextImgNum;
imgName = "images/gallery/interior"+nextImgNum+".jpg";
//galleryImg = new Image; 
document.galleryImg.src = imgName;
}


function showPrev(){
  i= document.imgNumber.imgNumberFl.value
  imgNum = parseInt(i);
 	if (imgNum != 1) {
  		nextImgNum = imgNum - 1;
   }else{
  	nextImgNum = 16;
}
//Use the form field on the dynamic pop-up window to store the current image number
document.imgNumber.imgNumberFl.value = nextImgNum;
//alert(imgNum);
//alert(nextImgNum);

//document.imgNumber.imgNumberFX.value = nextImgNum;
//document.imgNumber.imgNumberFY.value = imgNum;

imgName = "images/gallery/interior"+nextImgNum+".jpg";
document.galleryImg.src = imgName;
}

function btnHL(btnNm){
var btnName;
	if(document.getElementById) {
		var btnName = document.getElementById(btnNm);
	} else if (document.all){
		var btnName = document.all[btnNm];
	}
	btnName.className = "buttonBGHL";

}

function btnNrml(btnNm){
var btnName;
	if(document.getElementById) {
		var btnName = document.getElementById(btnNm);
	} else if (document.all){
		var btnName = document.all[btnNm];
	}
	btnName.className = "buttonBG";

}