function showImage(i) {
	document.getElementById("mainImage").src=mainImages[i][0];	
	document.getElementById("mainImage").title=mainImages[i][1];
	document.getElementById("mainImage").alt=mainImages[i][1];
	document.getElementById("mainImageLink").href=mainImages[i][3];
		document.getElementById("mainImageLink").title=mainImages[i][1];
	jQuery("#photoHeader").html(mainImages[i][1]);
	jQuery("#photoDescription").html(mainImages[i][2]);
	if (i==0)
		jQuery("#photoPrevious").hide();
	else
		jQuery("#photoPrevious").show();
	if (i==mainImages.length-1)
		jQuery("#photoNext").hide();
	else
		jQuery("#photoNext").show();
	currentImage=i;
	return false;
}