// JavaScript Document

function virtualpaginate(className, chunksize, elementType){
var elementType=(typeof elementType=="undefined")? "div" : elementType 
this.pieces=virtualpaginate.collectElementbyClass(className, elementType) 
this.chunksize=(typeof chunksize=="undefined")? 1 : (chunksize>0 && chunksize <this.pieces.length)? chunksize : this.pieces.length
this.pagecount=Math.ceil(this.pieces.length/this.chunksize) 
this.showpage(-1) 
this.currentpage=0 
this.showpage(this.currentpage) 
}

virtualpaginate.collectElementbyClass=function(classname, element){ 
var classnameRE=new RegExp("(^|\\s+)"+classname+"($|\\s+)", "i") 
var pieces=[]
var alltags=document.getElementsByTagName(element)
for (var i=0; i<alltags.length; i++){
if (typeof alltags[i].className=="string" && alltags[i].className.search(classnameRE)!=-1)
pieces[pieces.length]=alltags[i]
}
return pieces
}


virtualpaginate.prototype.showpage=function(pagenumber){
var totalitems=this.pieces.length 
var showstartindex=pagenumber*this.chunksize 
var showendindex=showstartindex+this.chunksize-1 
for (var i=0; i<totalitems; i++){
if (i>=showstartindex && i<=showendindex)
this.pieces[i].style.display="block"
else
this.pieces[i].style.display="none"
}
this.currentpage=parseInt(pagenumber)
if (this.cpspan) 
this.cpspan.innerHTML='Page '+(this.currentpage+1)+'/'+this.pagecount
}



virtualpaginate.prototype.paginate_build_regularlinks=function(paginatelinks){
var instanceOfBox=this
for (var i=0; i<paginatelinks.length; i++){
var currentpagerel=paginatelinks[i].getAttribute("rel")
if (currentpagerel=="previous" || currentpagerel=="next" || currentpagerel=="first" || currentpagerel=="last") 
paginatelinks[i].onclick=function(){
instanceOfBox.navigate(this.getAttribute("rel"))
return false
}
}
}
virtualpaginate.prototype.paginate_build_flatview=function(flatviewcontainer, anchortext){
var instanceOfBox=this
var flatviewhtml=""
var anchortext=anchortext || new Array()
for (var i=0; i<this.pagecount; i++){
if (typeof anchortext[i]!="undefined") 
flatviewhtml+='<a href="#flatview" rel="'+i+'">'+anchortext[i]+'</a> ' 
else
flatviewhtml+='<a href="#flatview" rel="'+i+'">'+(i+1)+'</a> ' 
}
flatviewcontainer.innerHTML=flatviewhtml
this.flatviewlinks=flatviewcontainer.getElementsByTagName("a")
for (var i=0; i<this.flatviewlinks.length; i++){
this.flatviewlinks[i].onclick=function(){
instanceOfBox.flatviewlinks[instanceOfBox.currentpage].className="" 
this.className="selected" 
instanceOfBox.showpage(this.getAttribute("rel"))
return false
}
}
this.flatviewlinks[this.currentpage].className="selected" 
this.flatviewpresent=true 
}

virtualpaginate.prototype.paginate_build_cpinfo=function(cpspan){
this.cpspan=cpspan
cpspan.innerHTML='Page '+(this.currentpage+1)+'/'+this.pagecount
}


virtualpaginate.prototype.buildpagination=function(divid, optnavtext){
var instanceOfBox=this
var paginatediv=document.getElementById(divid)
if (this.chunksize==this.pieces.length){
paginatediv.style.display="none"
return
}
var paginationcode=paginatediv.innerHTML 
if (paginatediv.getElementsByTagName("select").length>0) 
this.paginate_build_selectmenu(paginatediv.getElementsByTagName("select")[0], optnavtext)
if (paginatediv.getElementsByTagName("a").length>0) 
this.paginate_build_regularlinks(paginatediv.getElementsByTagName("a"))
var allspans=paginatediv.getElementsByTagName("span") 
for (var i=0; i<allspans.length; i++){
if (allspans[i].className=="flatview")
this.paginate_build_flatview(allspans[i], optnavtext)
else if (allspans[i].className=="paginateinfo")
this.paginate_build_cpinfo(allspans[i])
}
this.paginatediv=paginatediv
}

virtualpaginate.prototype.navigate=function(keyword){
if (this.flatviewpresent)
this.flatviewlinks[this.currentpage].className="" 
if (keyword=="previous")
this.currentpage=(this.currentpage>0)? this.currentpage-1 : (this.currentpage==0)? this.pagecount-1 : 0
else if (keyword=="next")
this.currentpage=(this.currentpage<this.pagecount-1)? this.currentpage+1 : 0
else if (keyword=="first")
this.currentpage=0
else if (keyword=="last")
this.currentpage=this.pieces.length-1
this.showpage(this.currentpage)
if (this.selectmenupresent)
this.paginatediv.getElementsByTagName("select")[0].selectedIndex=this.currentpage
if (this.flatviewpresent)
this.flatviewlinks[this.currentpage].className="selected" 
}