var randNum;
nav = new Array();
bar=0;
nav[bar] = "1_engagement";
bar=bar+1;
nav[bar] = "2_weddings";
bar=bar+1;
nav[bar] = "3_portrait";
bar=bar+1;
nav[bar] = "4_senior";
bar=bar+1;
nav[bar] = "5_event";
bar=bar+1;
nav[bar] = "6_studio";
bar=bar+1;
nav[bar] = "7_AboutUs";
bar=bar+1;
nav[bar] = "8_contact";
bar=bar+1;
nav[bar] = "9_pricing";
bar=bar+1;

function nextImg(){
	if(currPos < numOfImages){
		var cimg = document.getElementById('currImg');
		cimg.setAttribute("src",'../images/' + folderName + '/'+ folderName + (++currPos) + '.jpg');
		makeRedDots();
	}
}
function prevImg(){
	if(currPos > 1){
		var cimg = document.getElementById('currImg');
		cimg.setAttribute("src",'../images/' + folderName + '/'+ folderName + (--currPos) + '.jpg');
		makeRedDots();
	}
}
function gotoImg(indx){
	var cimg = document.getElementById('currImg');
	cimg.setAttribute("src",'../images/' + folderName + '/'+ folderName + (indx) + '.jpg');
	currPos = indx;
	makeRedDots();
}
function makeRedDots(){
	var nav = document.getElementById('navigation');
	var dots = nav.getElementsByTagName("img");
	
	for(var i=1;i<(dots.length-1);i++){
		dots[i].setAttribute("src",'../images/blackdot.gif');
	}
	dots[currPos].setAttribute("src",'../images/reddot.gif');
}

function rolloverNav(index){
  var curr = document.getElementById("nav" + index);
  curr.setAttribute("src","../images/nav/" + nav[index] + "_RO.gif");
}

function rollbackNav(index){
  var curr = document.getElementById("nav" + index);
  curr.setAttribute("src","../images/nav/" + nav[index] + ".gif");
}

function rollOver(img){
  var im = document.getElementById(img.getAttribute("id"));
  var filename = img.getAttribute("src");
  
  filename = filename.substr(0,filename.indexOf(".gif"));
  im.setAttribute("src",filename + "_RO.gif");
}

function rollBack(img){
  var im = document.getElementById(img.getAttribute("id"));
  var filename = img.getAttribute("src");
  
  filename = filename.substr(0,filename.indexOf("_RO.gif"));
  im.setAttribute("src",filename + ".gif");
}