var objtempImg = null;

function init()
{
	objtempImg = new OpacityObject('titleMain','images/main_title');
	objtempImg.setBackground();
	
	dataImage_Current= document.getElementById("image_current");
	dataImage_Total = document.getElementById("image_total");
	dataImage_Window = document.getElementById("image_window");
	
	
	dataPrev_Image = document.getElementById("prev_image");
	
	dataNext_Image = document.getElementById("next_image");
	
	dataSpace_Image = document.getElementById("image_space");
	
	
	img_max = 19;
	img_current =1;
	
}


function nextImage()
{
	img_current = img_current + 1;
	img_current = Math.min(19,img_current);
	dataImage_Window.src = "images/image_" + img_current  + ".jpg";
	
	img_current_text=img_current;
	
	if(img_current <= 9)
	{
		//img_current_text = "" + img_current;
		YAHOO.util.Dom.setStyle(dataSpace_Image, 'visibility', "hidden");
		removeAllChildNodes(dataSpace_Image);
		temp_data_txtNode = document.createTextNode("0");
		dataSpace_Image.appendChild(temp_data_txtNode);
		
	}
	else
	{
		YAHOO.util.Dom.setStyle(dataSpace_Image, 'visibility', "visible");
		removeAllChildNodes(dataSpace_Image);
		temp_data_txtNode = document.createTextNode("");
		dataSpace_Image.appendChild(temp_data_txtNode);
	}
	
	
	data_txtNode = document.createTextNode(img_current_text);
	if(dataImage_Current != null)
	{
			removeAllChildNodes(dataImage_Current);
			dataImage_Current.appendChild(data_txtNode);
	}
	
	
	if(dataPrev_Image != null)
	{
		if(img_current == 1)
		{
				YAHOO.util.Dom.setStyle(dataPrev_Image, 'visibility', "hidden");
		}
		else
		{
				YAHOO.util.Dom.setStyle(dataPrev_Image, 'visibility', "visible");
		}
		
		
	}
	
	if(dataNext_Image)
	{
			if(img_current == 19)
			{
					YAHOO.util.Dom.setStyle(dataNext_Image, 'visibility', "hidden");
			}
			else
			{
					YAHOO.util.Dom.setStyle(dataNext_Image, 'visibility', "visible");
			}
	}
}


function prevImage()
{
	img_current = img_current - 1;
	img_current = Math.max(1,img_current);
	dataImage_Window.src = "images/image_" + img_current  + ".jpg";
	
	
	
	img_current_text=img_current;
	
	if(img_current <= 9)
	{
		//img_current_text = "" + img_current;
		YAHOO.util.Dom.setStyle(dataSpace_Image, 'visibility', "hidden");
		removeAllChildNodes(dataSpace_Image);
		temp_data_txtNode = document.createTextNode("0");
		dataSpace_Image.appendChild(temp_data_txtNode);
	}
	else
	{
		YAHOO.util.Dom.setStyle(dataSpace_Image, 'visibility', "visible");
		removeAllChildNodes(dataSpace_Image);
		temp_data_txtNode = document.createTextNode("");
		dataSpace_Image.appendChild(temp_data_txtNode);
	}
	
	
	data_txtNode = document.createTextNode(img_current_text);
	if(dataImage_Current != null)
	{
			removeAllChildNodes(dataImage_Current);
			dataImage_Current.appendChild(data_txtNode);
	}
	
	
	if(dataPrev_Image != null)
	{
		if(img_current == 1)
		{
				YAHOO.util.Dom.setStyle(dataPrev_Image, 'visibility', "hidden");
		}
		else
		{
				YAHOO.util.Dom.setStyle(dataPrev_Image, 'visibility', "visible");
		}
	}
	
}


function removeAllChildNodes(node) {
    if (node && node.hasChildNodes && node.removeChild) {
        while (node.hasChildNodes()) {
            node.removeChild(node.firstChild);
        }
    }

}