//Specify the slider's width (in pixels)
    if (screen.width==800){
        var sliderwidth="380px"
    }
    if (screen.width==1024){
        var sliderwidth="550px"
    }
    if (screen.width==1152){
        var sliderwidth="600px"
    }
    if (screen.width==1280){
        var sliderwidth="870px"
    }
    //Specify the slider's height
    var sliderheight="78px"
    //Specify the slider's slide speed (larger is faster 1-10)
    var slidespeed=2
    //configure background color:
    slidebgcolor="#FFFFFF"

    //Specify the slider's images
    var leftrightslide=new Array()
    var finalslide=''
    //START
    
    leftrightslide[0]='<a href="/fichalibro/?isbn=9786073100694" id="[0]"><img src="/images/libros/all/thumb/9786073100694.jpg" border="0" width="53" height="78"></a>'
    leftrightslide[1]='<a href="/fichalibro/?isbn=9786073100021" id="[1]"><img src="/images/libros/all/thumb/9786073100021.jpg" border="0" width="53" height="78"></a>'
    leftrightslide[2]='<a href="/fichalibro/?isbn=9786073100090" id="[2]"><img src="/images/libros/all/thumb/9786073100090.jpg" border="0" width="53" height="78"></a>'
    leftrightslide[3]='<a href="/fichalibro/?isbn=9786073100113" id="[3]"><img src="/images/libros/all/thumb/9786073100113.jpg" border="0" width="53" height="78"></a>'
    leftrightslide[4]='<a href="/fichalibro/?isbn=9788499180267" id="[4]"><img src="/images/libros/all/thumb/9788499180267.jpg" border="0" width="53" height="78"></a>'
    leftrightslide[5]='<a href="/fichalibro/?isbn=9786074299717" id="[5]"><img src="/images/libros/all/thumb/9786074299717.jpg" border="0" width="53" height="78"></a>'
    leftrightslide[6]='<a href="/fichalibro/?isbn=9786074299267" id="[6]"><img src="/images/libros/all/thumb/9786074299267.jpg" border="0" width="53" height="78"></a>'
    leftrightslide[7]='<a href="/fichalibro/?isbn=9786074299748" id="[7]"><img src="/images/libros/all/thumb/9786074299748.jpg" border="0" width="53" height="78"></a>'
    leftrightslide[8]='<a href="/fichalibro/?isbn=9786074299502" id="[8]"><img src="/images/libros/all/thumb/9786074299502.jpg" border="0" width="53" height="78"></a>'
    leftrightslide[9]='<a href="/fichalibro/?isbn=9786073100472" id="[9]"><img src="/images/libros/all/thumb/9786073100472.jpg" border="0" width="53" height="78"></a>'
    leftrightslide[10]='<a href="/fichalibro/?isbn=9786073100441" id="[10]"><img src="/images/libros/all/thumb/9786073100441.jpg" border="0" width="53" height="78"></a>'
    leftrightslide[11]='<a href="/fichalibro/?isbn=9786073100434" id="[11]"><img src="/images/libros/all/thumb/9786073100434.jpg" border="0" width="53" height="78"></a>'

    //END

    var copyspeed=slidespeed
    leftrightslide='<nobr>'+leftrightslide.join(" ")+'</nobr>'
    var iedom=document.all||document.getElementById
    if (iedom)
    document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100px;left:-9000px">'+leftrightslide+'</span>')
    var actualwidth=''
    var cross_slide, ns_slide

    function fillup(){
    if (iedom){
    cross_slide=document.getElementById? document.getElementById("test2") : document.all.test2
    cross_slide2=document.getElementById? document.getElementById("test3") : document.all.test3
    cross_slide.innerHTML=cross_slide2.innerHTML=leftrightslide
    actualwidth=document.all? cross_slide.offsetWidth : document.getElementById("temp").offsetWidth
    cross_slide2.style.left=actualwidth+20+"px"
    }
    else if (document.layers){
    ns_slide=document.ns_slidemenu.document.ns_slidemenu2
    ns_slide2=document.ns_slidemenu.document.ns_slidemenu3
    ns_slide.document.write(leftrightslide)
    ns_slide.document.close()
    actualwidth=ns_slide.document.width
    ns_slide2.left=actualwidth+20
    ns_slide2.document.write(leftrightslide)
    ns_slide2.document.close()
    }
    lefttime=setInterval("slideleft()",30)
    }
    window.onload=fillup
    
    function slideleft(){
    if (iedom){
    if (parseInt(cross_slide.style.left)>(actualwidth*(-1)+8))
    cross_slide.style.left=parseInt(cross_slide.style.left)-copyspeed+"px"
    else
    cross_slide.style.left=parseInt(cross_slide2.style.left)+actualwidth+30+"px"
    
    if (parseInt(cross_slide2.style.left)>(actualwidth*(-1)+8))
    cross_slide2.style.left=parseInt(cross_slide2.style.left)-copyspeed+"px"
    else
    cross_slide2.style.left=parseInt(cross_slide.style.left)+actualwidth+30+"px"
    
    }
    else if (document.layers){
    if (ns_slide.left>(actualwidth*(-1)+8))
    ns_slide.left-=copyspeed
    else
    ns_slide.left=ns_slide2.left+actualwidth+30
    
    if (ns_slide2.left>(actualwidth*(-1)+8))
    ns_slide2.left-=copyspeed
    else
    ns_slide2.left=ns_slide.left+actualwidth+30
    }
    }

    if (iedom||document.layers){
    with (document){
    document.write('<table border="0"  cellpadding="5" cellspacing="0" align="center" cellspacing="0"><td>')
    if (iedom){
    write('<div style="position:relative;width:'+sliderwidth+';height:'+sliderheight+';overflow:hidden">')
    write('<div style="position:absolute;width:'+sliderwidth+';height:'+sliderheight+';background-color:'+slidebgcolor+'" onMouseover="copyspeed=0" onMouseout="copyspeed=slidespeed">')
    write('<div id="test2" style="position:absolute;left:0px;top:0px"></div>')
    write('<div id="test3" style="position:absolute;left:-1000px;top:0px"></div>')
    write('</div></div>')
    }
    else if (document.layers){
    write('<ilayer width='+sliderwidth+' height='+sliderheight+' name="ns_slidemenu" bgColor='+slidebgcolor+'>')
    write('<layer name="ns_slidemenu2" left=0 top=0 onMouseover="copyspeed=0" onMouseout="copyspeed=slidespeed"></layer>')
    write('<layer name="ns_slidemenu3" left=0 top=0 onMouseover="copyspeed=0" onMouseout="copyspeed=slidespeed"></layer>')
    write('</ilayer>')
    }
    document.write('</td></table>')
    }
    }