function btn_print(btnFileName)
{
  document.write("<input type='image' src='gfx/but_"+btnFileName+"_off.png' onmouseover='this.src=\"gfx/but_"+btnFileName+"_on.png\";' onmouseout='this.src=\"gfx/but_"+btnFileName+"_off.png\";' />");
}

function btn_a_print(btnFileName, linkURL)
{
  document.write("<a href='"+linkURL+"'><img src='gfx/but_"+btnFileName+"_off.png' onmouseover='this.src=\"gfx/but_"+btnFileName+"_on.png\";' onmouseout='this.src=\"gfx/but_"+btnFileName+"_off.png\";' border='0' /></a>");
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}