(function(){
window.onload=func
var wrap=0;
var back=0;
var texts=0;
var nomer=0;
var kolvo=0;
function func(){
var el=document.getElementsByTagName("td");
for(var i=0;el.length>i;i++){
if(el[i].firstChild.tagName=='IMG');
el[i].firstChild.onclick=big;
}
wrap=document.getElementById('big');
back=document.getElementById('back');
texts=document.getElementById('texts');
document.getElementById('prev').onclick=move;
document.getElementById('next').onclick=move;
var img=document.getElementsByTagName('img');
for(var i=0;i<img.length;i++){
if(img[i].className=='action')kolvo++;
}
back.onclick=clear
}
function big(event){
var event=event||window.event;
var target=event.target||event.srcElement;
nomer=target.parentNode.id.substr(2);
wrap.style.top=document.documentElement.scrollTop+100+'px'
nomer++;
nomer--;
prov(nomer);
action(nomer);
}
function action(nomer){
back.style.height=document.documentElement.scrollHeight+'px';
wrap.style.visibility='visible';
back.style.visibility='visible';
if(nomer==42.5 || nomer==43.5 || nomer==44.5 )
{
wrap.style.background="white url(images/bigs/item"+parseInt(nomer)+"_5.jpg) center 10px no-repeat";
}
else{
wrap.style.background="white url(images/bigs/item"+nomer+".jpg) center 10px no-repeat";
}
if(texts.innerHTML)texts.innerHTML=document.getElementById('td'+Math.floor(nomer)+'_').innerHTML;
}



function move(event){
var event=event||window.event;
var target=event.target||event.srcElement;
if(target.id=='next' && nomer>=42 && nomer<45)nomer+=0.5
else if(target.id=='prev' && nomer>42 && nomer<=45)nomer-=0.5
else{
if(target.id=='next')nomer++;
else nomer--;
}
prov(nomer);
action(nomer);
}



function prov(nomer){
document.getElementById('prev').style.visibility='visible'
document.getElementById('next').style.visibility='visible'
if(nomer==kolvo)document.getElementById('next').style.visibility='hidden'
else if(nomer==1)document.getElementById('prev').style.visibility='hidden'
}
function clear(){
wrap.style.visibility='hidden'
back.style.visibility='hidden'
document.getElementById('prev').style.visibility='hidden'
document.getElementById('next').style.visibility='hidden'
}
})()