/* Javascript code for CSS popups */
/*
 * (c) Lukas Nevosad, 2007
 *
 *
 *
 *
 */

/***************** POP UPS ***********************/
  // define of global variables:
  var vpopup_popupstoclose=Array();
  var vpopup_highlight=0;
  var vpopup_popupzindex=0;

  // configuration:
  var vpopup_popup_offset_horiz=0;
  var vpopup_popup_offset_vert=4;
  var vpopup_highlight_class='detail-book-selected';
  var vpopup_normal_class='detail-book';
  var vpopup_hide_delay=150;

  function ObjectFindPosition(obj) {
  /* (c) http://www.quirksmode.org/js/findpos.html */
	  var curleft = curtop = 0;
	  if (obj.offsetParent) {
		  curleft = obj.offsetLeft
		  curtop = obj.offsetTop
		  while (obj = obj.offsetParent) {
			  curleft += obj.offsetLeft
			  curtop += obj.offsetTop
		  }
	  }
//	  alert(curleft+","+curtop);
	  return [curleft,curtop];
  }

  function vpopup_show(name,mode) {
    var ret=true;
    var myobj;
    var parentobj;
    var pos;
    if (parentobj=document.getElementById('vpopupitem-'+name)) {
      if (myobj=document.getElementById('popup-'+name)) {
        pos=ObjectFindPosition(parentobj);
        myobj.style.display="block";
        if (mode=='left') {
          myobj.style.left=pos[0]+vpopup_popup_offset_horiz;
        } else {
          myobj.style.left=pos[0]+vpopup_popup_offset_horiz-myobj.offsetWidth+parentobj.offsetWidth;
//          alert("pos:"+pos[0]+" my width:"+myobj.offsetWidth+" parent width:"+parentobj.offsetWidth);
        }
        myobj.style.top=pos[1]+vpopup_popup_offset_vert+parentobj.offsetHeight;
        myobj.style.zIndex=vpopup_popupzindex++;
        if (vpopup_popupstoclose[name]) {
          clearTimeout(vpopup_popupstoclose[name]);
          vpopup_popupstoclose[name]=0;
        }
        if (name!=vpopup_highlight) {
          parentobj.className=vpopup_highlight_class;
        }
      } else ret=false;
    } else ret=false;
    return ret;
  }

  function vpopup_hide(name) {
    var ret=true;
    var myobj;
    if (myobj=document.getElementById('popup-'+name)) {
      vpopup_popupstoclose[name]=setTimeout("vpopup_popupHide('"+name+"')",vpopup_hide_delay);
    } else ret=false
    return ret;
  }

  function vpopup_popupHide(name) {
    var ret=true;
    var myobj;
    if (myobj=document.getElementById('popup-'+name)) {
      vpopup_popupstoclose[name]=0;
      myobj.style.display="none";
      if (parentobj=document.getElementById('vpopupitem-'+name)) {
        if (name!=vpopup_highlight) {
          parentobj.className=vpopup_normal_class;
        }
      }
    } else ret=false
    return ret;
  }

  function vpopup_keep(name) {
    var ret=true;
    var myobj;
    if (myobj=document.getElementById('popup-'+name)) {
      if (vpopup_popupstoclose[name]) {
        clearTimeout(vpopup_popupstoclose[name]);
        vpopup_popupstoclose[name]=0;
      }
    } else ret=false;
    return ret;
  }

/***************** CONFUSION ***********************/


function getCookie(name) {
  if (document.cookie.length>0) {
    c_start=document.cookie.indexOf(name + "=");
    if (c_start!=-1) {
      c_start=c_start + name.length+1;
      c_end=document.cookie.indexOf(";",c_start);
      if (c_end==-1) c_end=document.cookie.length;
      return unescape(document.cookie.substring(c_start,c_end));
    }
  }
  return "";
}

function setCookie(name,value,expiredays) {
  var exdate=new Date();
  exdate.setDate(exdate.getDate()+expiredays);
  document.cookie=name+ "=" +escape(value)+
  ((expiredays==null) ? "" : ";expires="+exdate.toGMTString());
}

function ConfusionSet() {
  setCookie('confusion','hide',14);
}

function ConfusionCheck() {
  var confusion=getCookie('confusion');
  if (confusion!=null && confusion!="") {
  } else {
    document.getElementById('confusion').style.display='block';
    ConfusionSet();
  }
}