//change page "建设指标解释"
var curentPage = document.getElementById("15_p1");
function changePage(id)
{  
  	var newPage = document.getElementById(id); 
  	if(newPage)
  	{  
  		curentPage.style.display="none";
  		curentPage = newPage;
  		curentPage.style.display = "block";
  	}
  	
}

$(document).ready(function(){
 //document content ready to modified below
 
 var lastSelectedImage = null;
 var lastScaffold = null;
 
 
 var fInitializer = function(){
	
	var focusImage = $(this);
	
	//register hover/unhover handler	
	focusImage.bind('mouseover', function(){ 
		if(!this.selected)
			focusImage.attr('src', focusImage.attr('imgover'));
	});
	focusImage.bind('mouseout', function(){
		if(!this.selected)
		{
		 focusImage.attr('src', focusImage.attr('imgout'));
		}
			
	});
	
	
	//register click handler  to display content OR toggle sub images
	var subImages = focusImage.siblings('div.sub_Buttons');
	if(subImages.length)
	{
		focusImage.bind('click', function(){
			
			if(subImages.css('display')== 'none')
			{
				if(lastScaffold)
				{
					lastScaffold.slideUp('fast');
				}
				subImages.slideDown("slow");
				lastScaffold = subImages;	
			}
			else
			{
				subImages.slideUp("slow");
			}
			
		});
		
		subImages.children('.sub_button').each(fInitializer);
	}
	else{
		
		
		focusImage.bind('click', function(event){
			
			if(lastScaffold && focusImage.attr('className') !== 'sub_button')
			{
				lastScaffold.slideUp('fast');
			}
			if(lastSelectedImage)
			{
				$(lastSelectedImage).attr('src', $(lastSelectedImage).attr('imgout'));
				lastSelectedImage.selected = false;			
			}
	
			focusImage.attr('src', focusImage.attr('imgover'));
			focusImage.get(0).selected = true;
			lastSelectedImage = focusImage.get(0);
			
			$('#tdjszbcontent > div').each(function(){
				
				
				if(this.id === (focusImage.get(0).id + "_content"))
					{
						
						$(this).css('display', 'block');			
					}
				else
					{
						$(this).css('display', 'none');
					}
					
			});
			
			//invoke layout page when tab changed.
			performColumnsLayout();
		

	});
	
	}
	
	
}

$('.button > img').each(fInitializer);


 //tab initialize function
 $('.button > img').trigger('click');
 $('.button > img:first').trigger('click');





 
})