// LIGHTBOX FUNCTION FADE

var x = 20; //ie
var z = 0.2; // other browsers

function Fade(whichGal, whichIm, max){
    var newImg = "images/gallery/" + whichGal + whichIm + ".jpg";
   document.getElementById('lImage').setAttribute("src", newImg);
   document.getElementById('lImage').setAttribute("alt", whichIm);
   //image text 1 of 15
   document.getElementById('NumIm').firstChild.nodeValue=whichIm + " of " + max;
 //fade in   
document.getElementById('light').style.display='block';

var x = 20; //ie
var z = 0.2; // other browsers

document.getElementById('fade').style.filter = "alpha(opacity=" + x + ")";
document.getElementById('fade').style.opacity = z;

document.getElementById('fade').style.display='block';
document.getElementById('fade').style.display='block';

showLImage();
    
}

function showLImage() {
//fade in
document.getElementById('fade').style.filter = "alpha(opacity=" + x + ")";
document.getElementById('fade').style.opacity = z;

if(x<=70 || z<=0.7)
    {
    x = x+10;
    z = z+0.1;
   //alert(i);
    setTimeout("showLImage()", 100)
    }
    else{
	//reset
	x = 20;
	z = 0.2
    }
}


// LIGHTBOX FUNCTION NEXT BUTTON

function nextB(whichGal, max){
    var current = parseInt(document.getElementById('lImage').getAttribute("alt"));
    //make previous button visible again
    if (current == 1){
	document.getElementById('previous').style.visibility = "visible";
    }
    if(current < parseInt(max)){
     //loading gif
     document.getElementById('loader').style.visibility='visible';
     //image
	newNum = ++current;
	var newImg = "images/gallery/" + whichGal + newNum + ".jpg";
       document.getElementById('lImage').setAttribute("src", newImg);
       document.getElementById('lImage').setAttribute("alt", newNum);
          //image text 1 of 15
   document.getElementById('NumIm').firstChild.nodeValue=newNum + " of " + max;
   }
    else{
	document.getElementById('next').style.visibility = "hidden";
    }
}


// LIGHTBOX FUNCTION PREVIOUS BUTTON


function previousB(whichGal, max){
    var current = parseInt(document.getElementById('lImage').getAttribute("alt"));
    
    //make previous button visible again
    if (current == max){
	document.getElementById('next').style.visibility = "visible";
    }
    
    if(current > 1){
      //loading gif
     document.getElementById('loader').style.visibility='visible';
	newNum = --current;
	var newImg = "images/gallery/" + whichGal + newNum + ".jpg";
       document.getElementById('lImage').setAttribute("src", newImg);
       document.getElementById('lImage').setAttribute("alt", newNum);
                 //image text 1 of 15
        document.getElementById('NumIm').firstChild.nodeValue=newNum + " of " + max;
   }
    else{
	document.getElementById('previous').style.visibility = "hidden";
    }
}