var registeredImages = new Object();
//var numberToPreload = 6;   -- está no asp, pega o número de registros
var preloadCount = 0;

//var image_base = "library/produtos/";
var image_base = "p/";
var image_c;
function registerImage(id_produto) {//, html, caption
   registeredImages[id_produto] = new Object();
    //alert(id_produto);
	
		nimg = id_produto.replace("p","");

		image_c = image_base + nimg + "_g.jpg";
		//alert(image_c);
	registeredImages[id_produto].image = image_c;
    //registeredImages[id].html = html;
    //registeredImages[id].caption = caption;

    if ( preloadCount < numberToPreload ) {
      var imagePreloader = new Image();
      imagePreloader.src = image_c;
      preloadCount++;

    }




}

   

 // var allPreloaded = 0;
 // var selectedImageID = "original_image";

  function mostraIMG(id_produto) {

		if(!registeredImages[id_produto]){ 
		//alert("naum registrada")
			registerImage(id_produto);
		}
		else
		{ 
	  		pega_img = $id("imggrande");
			pega_img.getElementsByTagName("img")[0].src = registeredImages[id_produto].image;
		}
	
	
	}
  
    
/*  
	
	function displayImage( id ) {
    if ( id == selectedImageID ) return;

    if (registeredImages[selectedImageID].ciuAnnoContainer) {
      registeredImages[selectedImageID].ciuAnnoContainer.hide();
    }
    selectedImageID = id;

    document.getElementById('prodImageCell').innerHTML = registeredImages[id].html;
    document.getElementById('prodImageCaption').innerHTML = registeredImages[id].caption;

    for ( elementID in registeredImages ) {
      var imageThumbnail = document.getElementById(elementID);
      if (imageThumbnail != null) {
	imageThumbnail.style.border = '1px solid #999999';
      }
      if ( !allPreloaded ) {
        var imagePreloader = new Image();
        imagePreloader.src = registeredImages[elementID].image;
      }
    }

    document.getElementById(id).style.border = '1px solid #990000';

    allPreloaded = 1;

    if (registeredImages[id].ciuAnnoContainer) {
      registeredImages[id].ciuAnnoContainer.show();
    }

  }
   
  registerImage("alt_image_6", "http://ecx.images-amazon.com/images/I/31VWOsYlgwL._AA280_.jpg", "<a href="+'"'+"http://www.amazon.com/gp/product/images/B000UTICZG/ref=dp_otherviews_6/102-9994654-2160157?ie=UTF8&s=pc&img=6"+'"'+" target="+'"'+"AmazonHelp"+'"'+" onclick="+'"'+"return amz_js_PopWin(this.href,'AmazonHelp','width=700,height=600,resizable=1,scrollbars=1,toolbar=0,status=1');"+'"'+"  ><img src="+'"'+"http://ecx.images-amazon.com/images/I/31VWOsYlgwL._AA280_.jpg"+'"'+" width="+'"'+"280"+'"'+" height="+'"'+"280"+'"'+" border="+'"'+"0"+'"'+" /></a>", "<br /><a href="+'"'+"http://www.amazon.com/gp/product/images/B000UTICZG/ref=dp_otherviews_6/102-9994654-2160157?ie=UTF8&s=pc&img=6"+'"'+" target="+'"'+"AmazonHelp"+'"'+" onclick="+'"'+"return amz_js_PopWin(this.href,'AmazonHelp','width=700,height=600,resizable=1,scrollbars=1,toolbar=0,status=1');"+'"'+"  >See larger image and other views</a>");
 
  */