var counter;
var collection = 4;
function galleryForward(){
    if(isNaN(counter)){
        counter = 1;
    }
    if(counter == collection){return;}
    for(i=1; i<8; i++){
        var id = parseInt(7 * counter) + parseInt(i);
        document["img" + i].src = "/UserFiles/image/gallery/small/image" + id + ".jpg";
        document.getElementById("link" + i).href = "/UserFiles/image/gallery/image" + id + ".jpg";
        
	}
	counter += 1;

}

function galleryBack(){
    if(isNaN(counter)){
        counter = 1;
    }
    if(counter == 1){return;}
    for(i=1; i<8; i++){
        var id = parseInt(7 * (counter - 2)) + parseInt(i);
        //alert(id);
        document["img" + i].src = "/UserFiles/image/gallery/small/image" + id + ".jpg";
        document.getElementById("link" + i).href = "/UserFiles/image/gallery/image" + id + ".jpg";
	}
	counter -= 1;
    
}