var normalLeft=new Image();var normalRight=new Image();var greyLeft=new Image();var greyRight=new Image();var productBigImages=new Array();var productBigImageIdx=0;function initProductBigImages(){normalLeft.src="/images/arrow_left.gif";normalRight.src="/images/arrow_right.gif";greyLeft.src="/images/arrow_left_diz.gif";greyRight.src="/images/arrow_right_diz.gif";pdiv=document.getElementById("productBigImages");if(pdiv){var a=0;for(i=0;i<pdiv.childNodes.length;i++){if(1==pdiv.childNodes[i].nodeType){productBigImages[a]=pdiv.childNodes[i];a=a+1}}}}function showDiv(a){a.style.visibility="visible";a.style.display="block"}function hideDiv(a){a.style.visibility="hidden";a.style.display="none"}function updateProductImageArrows(){if(document.images.picLeftArrow){document.images.picLeftArrow.src=productBigImageIdx>0?normalLeft.src:greyLeft.src;document.images.picRightArrow.src=(productBigImageIdx<productBigImages.length-1)?normalRight.src:greyRight.src}}function prevProductImage(){if(productBigImageIdx>0){hideDiv(productBigImages[productBigImageIdx--]);showDiv(productBigImages[productBigImageIdx]);updateProductImageArrows()}}function nextProductImage(){if(productBigImageIdx<productBigImages.length-1){hideDiv(productBigImages[productBigImageIdx++]);showDiv(productBigImages[productBigImageIdx]);updateProductImageArrows()}};