pn={
    showClass:'show',
    increase:1,

    init:function(){
        if(!document.getElementById || !document.createTextNode){return;}
        pn.ts=document.getElementById('news_list');
        pn.ts.datarows=pn.ts.getElementsByTagName('div');
        pn.ts.datarowsize=pn.ts.datarows.length;
        pn.ts.current=null;
        pn.ts.newsNext=document.getElementById('news_next');
        DOMhelp.addEvent(pn.ts.newsNext,'click',pn.navigate,false);
        pn.showSection(pn.ts,0);
    },
    navigate:function(e){
        if (pn.ts.current+pn.increase >= pn.ts.datarowsize) {
            start = 0;
        } else {
            start=pn.ts.current+pn.increase;
        }
        pn.showSection(pn.ts,start);
    },
    showSection:function(table,start){
    	var i;
        if(table.current != null){
            for(i=table.current;i<table.current+pn.increase;i++){
                if(table.datarows[i]){
                    DOMhelp.cssjs('remove',table.datarows[i],pn.showClass);
                }
            }
        }
        for(i=start;i<start+pn.increase;i++){
            if(table.datarows[i]){
                DOMhelp.cssjs('add',table.datarows[i],pn.showClass);
            }
        }
        table.current=start;
    }
};
DOMhelp.addEvent(window,'load',pn.init,false);