var np=21
var LPext='gif'
var SPext='jpg'
function DERISZADEHZI(){i.style.width=i.offsetWidth+10;i.style.height=i.offsetHeight+10}
function DERISZADEHZU(){i.style.width=i.offsetWidth+10;i.style.height=i.offsetHeight+10}

function DERISZADEHP(){
var v=parseInt(sie.title)
var v=v-1
if(v<1){alert('finish');return}
sie.title=v
i.src='lp/'+v+'.'+LPext
}

function DERISZADEHN(){
var v=parseInt(sie.title)
var v=v+1
if(v>np){alert('finish');return}
sie.title=v
i.src='lp/'+v+'.'+LPext
}

function DERISZADEHH(){}

function os(gi){i.src='lp/'+gi.id+'.'+LPext}

function si(gi){sie.title=gi.id} 

function hover(e){e.className='hover'}
function off(e){e.className='off'}
function Click(e){e.className='click'}
function DERISZADEH_browse(){
for(ii=0;ii<np;ii++){
str='&nbsp;&nbsp;&nbsp;&nbsp;<img src=sp/'+ii+'.'+SPext+' class="off" width="75" height="30"  id='+ii+' onclick="os(this),si(this)" onmousedown="Click(this)" onmouseup="hover(this)"   onmouseover="hover(this)" onmouseout="off(this)"><br>'
b.innerHTML+= str}
}

function DERISZADEH_imagegallery(){
b.style.height = document.body.clientHeight
icd.style.left = document.body.offsetWidth-180
DERISZADEH_browse();
}

function DERISZADEH_showcaption(string,top,left,width){
C.style.top= document.getElementById('icd').offsetTop+top
C.style.left=document.getElementById('icd').offsetLeft+left
C.style.width=width
C.innerHTML='<font size="2" face="tahoma">'+string+'</font>'
C.style.visibility='visible'
}
function DERISZADEH_hidecaption(){C.style.visibility='hidden'}

function show(){i.src='lp/1.'+LPext}


function DERISZADEHB(){

if(b.currentStyle.visibility=='visible'){b.style.visibility='hidden'}
else if(b.currentStyle.visibility=='hidden'){b.style.visibility='visible'}
}