function hover(id,src) {
	document.images[id].src=src;
}

function change(div_id,val){
    var elm=document.getElementById(div_id); 
    if (elm != null)   elm.innerHTML=val;
}

var firstThumb = 0;
var currPic = 0;
	
function showPic(i) {
	if(i==0) {//first thumbnail
		document.images['largePic'].src = largePic[i];
		document.images['largePic'].alt = descPic[i];
	} else {
		//change large image:
		document.images['largePic'].src = largePic[i];
		document.images['largePic'].alt = descPic[i];
	}
	//set currPic
	currPic = i;
	change('galleryheading',descPic[i]);
	RolloverPic(currPic,true);
}

function RolloverPic(i,over)
{
	if(window.document.images) 
	{
		if (over || i == currPic) {
			for (var j=0; j<iNoOfPics; j++) {
				if (j != currPic)document.images['thumb'+j].src = thumbPic[j];
			}
			document.images['thumb'+i].src = thumbPicOn[i];
		}
		else {
			document.images['thumb'+i].src = thumbPic[i];
		}
	}
}

function nextPic() {
	currPic++;
	if (currPic < iNoOfPics) {
		showPic(currPic);
		RolloverPic(currPic,true);
	}
	else showPic(0);
}

function nextPic1() {
	if(currPic ==0) {
		if(firstThumb==0) {//this means the second picture is shown in large area
			currPic = 1;
		}
	} 
	else if(currPic>2) {
		currPic = 0;
	} else {
		currPic++;
	}
	showPic(currPic);
}

function preLoad() {
	for (var i=0;i<preLoad.arguments.length;i++) {
		for (var j=0;j<eval(preLoad.arguments[i]+".length");j++) {
			var image = new Image();
			eval("image.src = " + preLoad.arguments[i] + "[" + j +"]");
		}
	}
}