/*
created by zenverse.net
*/

var zv_postimagenum;
var zv_visible_level = 0;
var zv_invisible_level = 1;
var zv_timedelay = 70;
var zv_textdelay = 10;
var zv_nextrounddelay = 5500;
var zv_tohide = 1;
var zv_toshow = 2;
var zv_groupid = 'zv_img';
var zv_spanid = 'zv_div_of_';
var zv_running = false;


function zv_gallery_run(rerun) {
zv_invisible_level = 1;
zv_visible_level = 0;

if (rerun) {
zv_running = false;
}

if (!zv_running) {
setTimeout("zv_makeinvisible('"+zv_groupid+zv_tohide+"','"+zv_groupid+zv_toshow+"');",zv_timedelay);
}
zv_running = true;

var zstart;
var zend;
//prepare for next round
switch (zv_postimagenum) {
  case 1:
  zstart = 1;
  zend = 1;
break;
  case 2:
  zstart = zv_toshow;
  zend = zv_tohide;
break;
  default:
  // start default
  zstart = zv_toshow;
  zend = zv_toshow+1;
  if (zend > zv_postimagenum) {
  zend = 1;
  }
  // end default
break;
} //end switch
//alert('hiding '+zv_tohide+', showing '+zv_toshow);
zv_tohide = zstart;
zv_toshow = zend;
}

function zv_makeinvisible(id,afterfinish) {
var getelement = document.getElementById(id);
//getelement.style.display = 'block';
getelement.style.opacity = zv_invisible_level;
try {
getelement.filters.alpha.opacity = zv_invisible_level*100;
} catch (e) {}
zv_invisible_level = Math.round((zv_invisible_level-0.1)*10)/10;

if (zv_invisible_level<0) {
getelement.style.display = 'none'
zv_hidespan(id)
  if (afterfinish != '') {
  setTimeout("zv_makevisible('"+afterfinish+"',true);",zv_timedelay);
  }
zv_invisible_level = 1;
} else {
getelement.style.display = 'block'
  if (afterfinish != '') {
  setTimeout("zv_makeinvisible('"+id+"','"+afterfinish+"');",zv_timedelay);
  } else {
  setTimeout("zv_makeinvisible('"+id+"');",zv_timedelay);
  }
}

}

function zv_makevisible(id,nextround) {
var getelement = document.getElementById(id);
getelement.style.opacity = zv_visible_level;
try {
getelement.filters.alpha.opacity = zv_visible_level*100;
} catch (e) {}
zv_visible_level = Math.round((zv_visible_level+0.1)*10)/10;

if (zv_visible_level>1) {
zv_showspan(id)
//getelement.style.display = 'block';
zv_visible_level = 0;
  if (nextround) {
  zv_running = false;
  setTimeout("zv_gallery_run(true);",zv_nextrounddelay);
  }
} else {
getelement.style.display = 'block';
  if (nextround) {
  setTimeout("zv_makevisible('"+id+"',true);",zv_timedelay);
  } else {
  setTimeout("zv_makevisible('"+id+"');",zv_timedelay);
  }
}

}

var zv_hide_pos = 0;
function zv_hidespan(id) {
document.getElementById(zv_spanid+id).style.position = 'relative';
document.getElementById(zv_spanid+id).style.top = zv_hide_pos+'px';
zv_hide_pos = zv_hide_pos+1;

if (zv_hide_pos < 20) {
setTimeout("zv_hidespan('"+id+"')",zv_textdelay);
} else {
zv_hide_pos = 0;
document.getElementById(zv_spanid+id).style.display = 'none';
}
}

var zv_show_pos = 20;
function zv_showspan(id) {
document.getElementById(zv_spanid+id).style.display = 'block';
document.getElementById(zv_spanid+id).style.position = 'relative';
document.getElementById(zv_spanid+id).style.top = zv_show_pos+'px';
zv_show_pos = zv_show_pos-1;

if (zv_show_pos >= 0) {
setTimeout("zv_showspan('"+id+"')",zv_textdelay);
} else {
zv_show_pos = 20;
}
}

function zv_getnumofimages() {
var stopat = 1;
var tryx;
for ( var i=1; i<30; i++ ) {
  try {
    tryx = document.getElementById(zv_groupid+i).innerHTML;
  } catch (e) {
      stopat = i;
      break;
  }
}
zv_postimagenum = stopat-1;

if (zv_postimagenum == 1) {
zv_toshow = 1;
} else {
zv_toshow = 2;
}

if (zv_postimagenum) {

if (zv_postimagenum > 1) {
for (var x=2;x<=zv_postimagenum;x++) {
document.getElementById(zv_groupid+x).style.display = 'none';
document.getElementById(zv_spanid+zv_groupid+x).style.display = 'none';
}
}

setTimeout("zv_gallery_run();",zv_nextrounddelay);
}
}