//
//  CrossBrowser JavaScript Library
//
//  Author: Valeriu Palos
//  Web: www.palos.ro
//  
//
//  LICENSE: This software is to be used free of charge for both
//           NON-COMMERCIAL  AND  COMMERCIAL applications for as
//           long  as  this comment remains  untouched.
//
//           You are also allowed to freely distribute this file
//           but only in its unaltered form.
//
//           DISCLAIMER: Palos & Sons ® further does not warrant
//           the  accuracy  or  completeness of the information,
//           text, graphics, links  or  other items contained in
//           these materials. Palos & Sons ® shall not be liable
//           for   any   special,   indirect,   incidental,   or
//           consequential damages including, without limitation
//           lost  revenues  or  lost  profits, which may result
//           from the use of these materials. 
//
//  Send improvements to: support@palos.ro
//

//
//  This library contains the following functions:
//
//  getObjectCB(pID)
//  getBrowserInfoCB()
//  setVisibilityCB(pObj,visible)
//  setExistenceCB(pObj,existent)
//  getAbsolutePositionCB(pObj)
//  setPositionCB(pObj,x,y)
//  getSizeCB(pObj)
//  setSizeCB(pObj,width,height)
//  getClipRectCB(pObj)
//  setClipRectCB(pObj,top,right,bottom,left)
//  loadDocumentCB(pObj,pURL)
//  setContentCB(pObj,HTMLCode)
//  getScrollOffsetCB(pWindow)
//  scrollPageCB(pWindow,scrollLeft,scrollTop)
//  scrollPageByCB(pWindow,scrollLeft,scrollTop)
//  getWindowPositionCB(pWindow)
//  setWindowPositionCB(pWindow,x,y)
//  setWindowPositionByCB(pWindow,x,y)
//  getWindowSizeCB(pWindow)
//  setWindowSizeCB(pWindow,width,height)
//  setWindowSizeByCB(pWindow,width,height)
//

function getBrowserInfoCB()
  {  
  function CAPABILITIES()  
    {  
    this.browserName=false;  
    this.browserVersion=false;  
    this.engine=false;  
    this.engineVersion=false;  
    this.cookies=false;  
    this.MSIE=false;  
    this.NETSCAPE=false;  
    this.OPERA=false;  
    this.GECKO=false;  
    }  
  var caps=new CAPABILITIES();  
  var temp=0;  
  if(navigator)  
    {  
    //get browser name 
    caps.browserName=navigator.appName;  

    //get engine description and version 
    caps.engine=navigator.userAgent;  
    caps.engineVersion=parseFloat(navigator.appVersion);  

    //detect if cookies are available 
    if(navigator.cookieEnabled)  
      caps.cookies=navigator.cookieEnabled;  
    else  
      {  
      document.cookie="testCookieName=1234567; path=/";  
      caps.cookies=document.cookie.indexOf("testCookieName")>-1;  
      }  

    //individual browser variables
    //Opera browser 
    caps.OPERA=(navigator.userAgent.indexOf("Opera")>-1); 
    if(!caps.OPERA) 
      {
      //Microsoft Internet Explorer 
      caps.MSIE=(navigator.appName.indexOf("Microsoft")>-1) && 
                //might be Opera disguised as MSIE
                (navigator.userAgent.indexOf("Opera")==-1);  
      if(navigator.userAgent.indexOf("Gecko")>-1) 
        { 
        //Netscape 6+
        caps.NETSCAPE=(navigator.userAgent.indexOf("Netscape")!=-1); 
        //Gecko, Mozilla, K-meleon etc. 
        caps.GECKO=!caps.NETSCAPE;
        } 
        else  
        //Netscape 4.xx
        caps.NETSCAPE=(navigator.appName.indexOf("Netscape")>-1);
      } 

    //browser version 
    //browser version for Netscape 4
    caps.browserVersion=caps.engineVersion;
    if(caps.OPERA) 
      {  
      temp=navigator.userAgent.indexOf("Opera");  
      caps.browserVersion=temp>-1?
        parseFloat(navigator.userAgent.substr(temp+6)):0;  
      }  
    if(caps.MSIE)  
      {  
      temp=navigator.userAgent.indexOf("MSIE");  
      caps.browserVersion=temp>-1?
       parseFloat(navigator.userAgent.substr(temp+5)):0;
      caps.engineVersion=caps.browserVersion;
      }
    if(caps.GECKO)  
      {  
      temp=navigator.userAgent.indexOf("rv:"); 
      caps.browserVersion=(temp>-1)?
        parseFloat(navigator.userAgent.substr(temp+3)):0;  
      } 
    //Netscape 6+
    if(caps.NETSCAPE && (caps.engineVersion>=5))
      { 
      temp=navigator.userAgent.indexOf("Netscape/");  
      caps.browserVersion=temp>-1?
        parseFloat(navigator.userAgent.substr(temp+9)):0;  
      } 
    //counteract the Opera disguising mechanism
    if(caps.OPERA && (caps.browserName.indexOf('Opera')==-1))
      { 
      caps.browserName='Opera'; 
      caps.engineVersion=caps.browserVersion; 
      } 
    }  
  return caps;  
  }

function getObjectCB(pID) 
  { 
  if(document.all) 
    return document.all[pID]==null?
           false:document.all[pID];  
  if(document.getElementById) 
    return document.getElementById(pID);  
  if(document[pID]) 
    return document[pID]; 
  return false; 
  }

function setVisibilityCB(pObj,visible) 
  { 
  if(pObj) 
    { 
    if(pObj.visibility) 
      { 
      pObj.visibility=visible?'show':'hide'; 
      return true; 
      } 
    else if(pObj.style) 
      { 
      pObj.style.visibility=visible?'visible':'hidden'; 
      return true; 
      } 
    } 
  return false; 
  }

function setExistenceCB(pObj,existent) 
  {

  //this is necessary because Opera 6- browsers 
  //act as if it would work but it doesn't  
  var bi=getBrowserInfoCB();
  if(bi.OPERA && bi.browserVersion<7)
    return false;
  
  if(pObj) 
    { 
    if(pObj.style) 
      {
      pObj.style.display=existent?'block':'none';
      return true;
      }
    }
  return false;
  }

function getAbsolutePositionCB(pObj)  
  {  
  function point()
    {
    this.x=0;
    this.y=0;
    }
  var p=new point();  
  if(pObj)  
    {
    if(pObj.x)  
      { 
      p.x=pObj.x;  
      p.y=pObj.y;  
      return p;  
      }  
    else if(pObj.getBoundingClientRect && 
            document.body && 
            document.body.clientLeft)  
      {  
      var pObjRect=pObj.getBoundingClientRect();  
      p.x=pObjRect.left-document.body.clientLeft;  
      p.y=pObjRect.top-document.body.clientTop;  
      return p;  
      }  
    else if (pObj.offsetParent)  
      {  
      while (pObj.offsetParent)  
        {  
        p.x+=pObj.offsetLeft;  
        p.y+=pObj.offsetTop;  
        pObj=pObj.offsetParent;  
        }  
      return p;  
      }  
    }  
  p.x=false;  
  p.y=false;  
  return p;  
  }

function setPositionCB(pObj,x,y) 
  { 
  if(pObj) 
    {
    if(pObj.left) 
      {
      pObj.left=x; 
      pObj.top=y; 
      return true;
      } 
    else if(pObj.style) 
      { 
      pObj.style.left=x; 
      pObj.style.top=y; 
      return true;
      } 
    } 
  return false;
  }

function getSizeCB(pObj) 
  { 
  function point() 
    { 
    this.width=-1; 
    this.height=-1; 
    } 
  var p=new point(); 
  if(pObj) 
    { 
    if(pObj.offsetWidth) 
      { 
      p.width=pObj.offsetWidth; 
      p.height=pObj.offsetHeight; 
      return p; 
      } 
    else if(pObj.clip) 
      { 
      p.width=pObj.clip.width; 
      p.height=pObj.clip.height; 
      return p; 
      } 
    else if(pObj.style.pixelWidth) 
      { 
      p.width=pObj.style.pixelWidth; 
      p.height=pObj.style.pixelHeight; 
      return p; 
      } 
    } 
  p.width=false; 
  p.height=false; 
  return p; 
  }

function setSizeCB(pObj,width,height) 
  { 
  if(width>0 && height>0 && pObj) 
    { 
    if(pObj.style) 
      { 
      //sometimes needed for MSIE & Mozilla/NS6
      pObj.style.overflow='hidden';
      pObj.style.width=width; 
      pObj.style.height=height; 
      if(pObj.style.pixelWidth) 
        { 
        pObj.style.pixelWidth=width; 
        pObj.style.pixelHeight=height; 
        } 
      return true; 
      } 
    else if(pObj.clip && pObj.clip.width) 
      { 
      pObj.clip.width=width; 
      pObj.clip.height=height; 
      return true; 
      } 
    } 
  return false; 
  }

function getClipRectCB(pObj) 
  { 
  function rect() 
    { 
    this.top=-1; 
    this.right=-1; 
    this.bottom=-1; 
    this.left=-1; 
    } 
  var r=new rect(); 
  if(pObj) 
    { 
    if(pObj.clip) 
      { 
      r.top=pObj.clip.top; 
      r.right=pObj.clip.right; 
      r.bottom=pObj.clip.bottom; 
      r.left=pObj.clip.left; 
      return r; 
      } 
    else if(pObj.style && pObj.style.clip) 
      { 
      var clipCS=pObj.style.clip; 
      rep=/px/gi;clipCS=clipCS.replace(rep,""); 
      rep=/,/gi;clipCS=clipCS.replace(rep,""); 
      var clipCV=clipCS.split("rect(")[1].split(")")[0].split(" "); 
      r.top=Number(clipCV[0]); 
      r.right=Number(clipCV[1]); 
      r.bottom=Number(clipCV[2]); 
      r.left=Number(clipCV[3]); 
      return r; 
      } 
    } 
  r.top=r.right=r.bottom=r.left=false; 
  return r; 
  }

function setClipRectCB(pObj,top,right,bottom,left) 
  { 
  if(pObj) 
    {   
    if(pObj.clip) 
      { 
      pObj.clip.top = top 
      pObj.clip.right = right 
      pObj.clip.bottom = bottom 
      pObj.clip.left = left; 
      return true; 
      } 
    else if(pObj.style) 
      { 
      pObj.style.clip = "rect("+top+"px "+right+
        "px "+bottom+"px "+left+"px)"; 
      return true; 
      } 
    } 
  return false; 
  }

function loadDocumentCB(pObj,pURL)
  {

  //this is necessary because Opera 6- browsers 
  //act as if it would work but it doesn't  
  var bi=getBrowserInfoCB();
  if(bi.OPERA && bi.browserVersion<7)
    return false;

  if(pObj)
    {
    if(pObj.src)
      {
      pObj.src=pURL;
      return true;
      }
    else if(pObj.load)
      return pObj.load(pURL);
    }
  return false;
  }

function setContentCB(pObj,HTMLCode) 
  { 
  if(pObj) 
    { 
    if(pObj.innerHTML) 
      { 
      pObj.innerHTML=HTMLCode; 
      return true; 
      } 
    else if(pObj.document && document.layers) 
      { 
      pObj.document.open(); 
      pObj.document.write(HTMLCode); 
      pObj.document.close(); 
      return true; 
      } 
    } 
  return false; 
  }

function getScrollOffsetCB(pWindow) 
  { 

  function point() 
    { 
    this.scrollLeft=-1; 
    this.scrollTop=-1; 
    } 
  var p=new point(); 

  //this is necessary because Opera 5- browsers 
  //act as if it would work but it doesn't
  var bi=getBrowserInfoCB();
  if(bi.OPERA && bi.browserVersion<6)
    {
    p.scrollLeft=false;
    p.scrollTop=false;
    return p;
    }

  if(pWindow) 
    { 
    if(pWindow.document.layers) 
      { 
      p.scrollLeft=pWindow.pageXOffset; 
      p.scrollTop=pWindow.pageYOffset; 
      return p; 
      } 
    else if(pWindow.document.body && 
            pWindow.document.body.scrollLeft!=null) 
      { 
      p.scrollLeft=pWindow.document.body.scrollLeft; 
      p.scrollTop=pWindow.document.body.scrollTop; 
      return p; 
      } 
    } 
  p.scrollLeft=false; 
  p.scrollTop=false; 
  return p; 
  }

//absolute scroll 
function scrollPageCB(pWindow,scrollLeft,scrollTop) 
  {
  if(pWindow && pWindow.scrollTo) 
    {
    pWindow.scrollTo(scrollLeft,scrollTop); 
    return true; 
    }
  return false; 
  } 

//relative scroll 
function scrollPageByCB(pWindow,scrollLeft,scrollTop) 
  { 
  if(pWindow && pWindow.scrollBy) 
    { 
    pWindow.scrollBy(scrollLeft,scrollTop); 
    return true; 
    } 
  return false; 
  }

function getWindowPositionCB(pWindow) 
  { 
  function point() 
    { 
    this.x=-1; 
    this.y=-1; 
    } 
  var p=new point(); 
  if(pWindow && pWindow.document) 
    { 
    if(pWindow.screenX) 
      {
      p.x=pWindow.screenX; 
      p.y=pWindow.screenY; 
      return p; 
      } 
    else if(pWindow.screenLeft) 
      { 
      p.x=pWindow.screenLeft; 
      p.y=pWindow.screenTop; 
      return p; 
      } 
    else if(pWindow.event && pWindow.event.clientX) 
      { 
      p.x=pWindow.event.screenX-pWindow.event.clientX; 
      p.y=pWindow.event.screenY-pWindow.event.clientY; 
      return p; 
      } 
    } 
  p.x=false; 
  p.y=false; 
  return p; 
  }

//absolute positioning 
function setWindowPositionCB(pWindow,x,y) 
  { 
  if(pWindow && pWindow.moveTo) 
    { 
    pWindow.moveTo(x,y); 
    return true; 
    } 
  return false; 
  } 

//relative positioning 
function setWindowPositionByCB(pWindow,x,y) 
  { 
  if(pWindow && pWindow.moveBy) 
    { 
    pWindow.moveBy(x,y); 
    return true; 
    } 
  return false; 
  }

function getWindowSizeCB(pWindow) 
  { 
  function point() 
    { 
    this.width=-1; 
    this.height=-1; 
    } 
  var p=new point(); 
  if(pWindow && pWindow.document) 
    { 
    if(pWindow.innerWidth) 
      { 
      p.width=pWindow.innerWidth; 
      p.height=pWindow.innerHeight; 
      return p; 
      } 
    else if(pWindow.document.body && 
            pWindow.document.body.clientWidth!=null) 
      { 
      p.width=pWindow.document.body.clientWidth; 
      p.height=pWindow.document.body.clientHeight; 
      return p; 
      } 
    } 
  p.width=false; 
  p.height=false; 
  return p; 
  }

//absolute size 
function setWindowSizeCB(pWindow,width,height) 
  { 
  if(pWindow && pWindow.resizeTo) 
    { 
    pWindow.resizeTo(width,height); 
    return true; 
    } 
  return false; 
  } 

//relative size 
function setWindowSizeByCB(pWindow,width,height) 
  { 
  if(pWindow && pWindow.resizeBy) 
    { 
    pWindow.resizeBy(width,height); 
    return true; 
    } 
  return false; 
  }