function pageto(e) { 
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	var pgu=$('#pagepre').attr('href');
	var pgd=$('#pagenext').attr('href');
    if ( ev.keyCode==37 ) {
		if ( pgu != undefined ) {
			location.href=pgu;
		}
	}
	if ( ev.keyCode==39 ) {
		if( pgd != undefined ) {
			location.href=pgd;
		}
	}
}