var dl_NS4 = (document.layers);
var dl_IE4 = (document.all);
var dl_DOM = (document.getElementById);
var dl_ver4 = (dl_NS4 || dl_IE4 || dl_DOM);
if(window.opera){
var dl_aMatches = navigator.userAgent.match( /Opera.([\d]+\.[\d]+)/ );
if( dl_aMatches != null ){ver4 = ( parseFloat( dl_aMatches[ 1 ] ) >= 5.12 )};
}
var dl_imPfx = "../art/b_";

if(document.images){
var dl_aImSrcs=[dl_imPfx+"left_over.gif",dl_imPfx+"left_down.gif",dl_imPfx+"right_over.gif",dl_imPfx+"right_down.gif"];
var dl_aImObjs=new Array ();
for(var dl_i=0;dl_i<4;dl_i++){dl_aImObjs[dl_i] = new Image();dl_aImObjs[dl_i].src = dl_aImSrcs[dl_i]};
}

function movr(){this.img.src = this.img.overSrc}
function mout(){this.img.src = this.img.outSrc}
function mdown(){this.img.src = this.img.downSrc}
function makeButs(pg,tot,col){
	var aPages = [null,"index.html"];
	for(var i=2;i<=tot;i++){aPages[i]=(i+".html")};
    var sPrefix = dl_imPfx;
	var lr = "left";
    var lstr = ("<TABLE WIDTH=100%><TR VALIGN=TOP><TD ALIGN=LEFT><B><A HREF='/'>home</A> / <A HREF='/experts/'>experts</A> / <A HREF='/dhtml/'>dhtml</A> / ");
    if(pg!=1){ lstr+="<A HREF='/dhtml/column"+col+"/'>column"+col+"</A> / " + pg}else{ lstr+="column"+col+"</B>" };
    lstr+= "</TD><TD ALIGN=RIGHT>";
    document.write(lstr);
	var bOpera = window.opera;
	var imstr,aLinks,tLink,aImgs,tImg;
    for(i=1;i<=tot;i++){
        if (i==pg) lr = "center";
        imstr = "<IMG SRC='"+ sPrefix + lr + ".gif' WIDTH=18 HEIGHT=18 BORDER=0>";
        if (i==pg) {document.write(imstr);lr="right";continue}
        document.write(imstr.link(aPages[i]));
        if(!dl_ver4) continue;
		if( bOpera )
		{
			aLinks = document.getElementsByTagName('a');
			tLink = aLinks.item( aLinks.length - 1 );
			aImgs = document.getElementsByTagName('img');
			tImg = tLink.img = aImgs.item( aImgs.length - 1 );
		}
		else
		{
			aLinks = document.links;
			tLink = aLinks[ aLinks.length - 1 ];
			aImgs = document.images;
			tImg = tLink.img = aImgs[ aImgs.length - 1 ];
		}
        tImg.outSrc = tImg.src;
        tImg.downSrc = dl_imPfx + lr + "_down.gif";
        tImg.overSrc = dl_imPfx + lr + "_over.gif";
        tLink.onmouseover = movr;
        tLink.onmouseout = tLink.onmouseup = mout;
        tLink.onmousedown = mdown;

    }
    var sPrevPage=((pg==2)?"index":(pg-1));
    var sPrev=(pg==1)?"":"[ <A HREF='"+sPrevPage+".html'>Previous</A> ]";
    var sNextPage=(pg+1);
    var sNext=(pg==tot)?"":"[ <A HREF='"+sNextPage+".html'>Next</A> ]";
    document.write("<BR>"+sPrev+" "+sNext);
    document.write("</TD></TR></TABLE>");
}