// TJPzoom 3 * János Pál Tóth

// 2007.07.12

// Docs @ http://valid.tjp.hu/tjpzoom/ 

// News @ http://tjpzoom.blogspot.com/



function TJPzoomswitch(obj) {

 TJPon[obj]=((TJPon[obj])?(0):(1));

 return TJPon[obj];

}



function TJPzoomif(obj,highres) {

 if(TJPon[obj]) {TJPzoom(obj,highres);}

}



function TJPzoom(obj,highres) {

 TJPzoomratio=TJPzoomheight/TJPzoomwidth;

 if(TJPzoomoffsetx > 1) {

  TJPzoomoffset='dumb';

  TJPzoomoffsetx=TJPzoomoffsetx/TJPzoomwidth;

  TJPzoomoffsety=TJPzoomoffsety/TJPzoomheight;

 }

 if(!obj.style.width) {

  if(obj.width > 0) {

   //educated guess

   obj.style.width=obj.width+'px';

   obj.style.height=obj.height+'px';

  }

 }

 if(typeof(highres) != typeof('')) {highres=obj.src}

 var TJPstage=document.createElement("div");

 TJPstage.style.width=obj.style.width;

 TJPstage.style.height=obj.style.height;

 TJPstage.style.overflow='hidden';

 TJPstage.style.position='absolute';

 if(typeof(TJPstage.style.filter) != typeof(nosuchthing)) {

  //hi IE

  if(navigator.appVersion.indexOf('Mac') == -1) { //hi Mac IE

   TJPstage.style.filter='alpha(opacity=0)';

   TJPstage.style.backgroundColor='#ffffff';

  }

 } else {

  //hi decent gentlemen

  TJPstage.style.backgroundImage='transparent';

 }

 TJPstage.setAttribute('onmousemove','TJPhandlemouse(event,this);');

 TJPstage.setAttribute('onmousedown','TJPhandlemouse(event,this);');

 TJPstage.setAttribute('onmouseup','TJPhandlemouse(event,this);');

 TJPstage.setAttribute('onmouseout','TJPhandlemouse(event,this);');

 if(navigator.userAgent.indexOf('MSIE')>-1) {

  TJPstage.onmousemove = function() {TJPhandlemouse(event,this);}

  TJPstage.onmousedown = function() {TJPhandlemouse(event,this);}

  TJPstage.onmouseup = function() {TJPhandlemouse(event,this);}

  TJPstage.onmouseout = function() {TJPhandlemouse(event,this);}

 }

 obj.parentNode.insertBefore(TJPstage,obj);

 

 TJPwin=document.createElement("div");

 TJPwin.style.width='0px';

 TJPwin.style.height='0px';

 TJPwin.style.overflow='hidden';

 TJPwin.style.position='absolute';

 TJPwin.style.display='none';

 tw1='<div style="position:absolute;overflow:hidden;margin:';

 TJPwin.innerHTML= 

 tw1+TJPshadowthick+'px 0 0 '+TJPshadowthick+'px; background-color:'+TJPbordercolor+'; width:'+(TJPzoomwidth-TJPshadowthick*2)+'px;height:'+(TJPzoomheight-TJPshadowthick*2)+'px"></div>' +

 tw1+(TJPshadowthick+TJPborderthick)+'px 0 0 '+(TJPshadowthick+TJPborderthick)+'px; width:'+(TJPzoomwidth-TJPshadowthick*2-TJPborderthick*2)+'px;height:'+(TJPzoomheight-TJPshadowthick*2-TJPborderthick*2)+'px;"><img src="'+obj.src+'" style="position:absolute;margin:0;padding:0;border:0; width:'+(TJPzoomamount*parseInt(obj.style.width))+'px;height:'+(TJPzoomamount*parseInt(obj.style.height))+'px;" />'+((obj.src!=highres)?('<img src="'+highres+'" style="position:absolute;margin:0;padding:0;border:0; width:'+(TJPzoomamount*parseInt(obj.style.width))+'px;height:'+(TJPzoomamount*parseInt(obj.style.height))+'px;" onload="if(this.parentNode) {this.parentNode.parentNode.getElementsByTagName(\'div\')[2].style.display=\'none\';}" />'):(''))+'</div>';

 if(highres != obj.src) {

  TJPwin.innerHTML+='<div style="position:absolute; margin:'+(TJPshadowthick+TJPborderthick)+'px 0 0 '+(TJPshadowthick+TJPborderthick)+'px;">'+TJPloading+'</div>';

 }

 if(TJPshadowthick>0) {

  st1='<span style="position:absolute; display:inline-block; margin: ';

  st2='filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod=\'scale\',src='

  st3='filter:alpha(opacity=0);margin:0;padding:0;border:0;"/></span>';

  TJPwin.innerHTML+=

  st1+'0 0 0 0    ; width:'+TJPshadowthick*2+'px; height:'+TJPshadowthick*2+'px;'+st2+'\''+TJPshadow+'nw.png\')"><img src="'+TJPshadow+'nw.png" style="width:'+TJPshadowthick*2+'px; height:'+TJPshadowthick*2+'px;'+st3 +

  st1+'0 0 0 '+(TJPzoomwidth-TJPshadowthick*2)+'px; width:'+TJPshadowthick*2+'px; height:'+TJPshadowthick*2+'px;'+st2+'\''+TJPshadow+'ne.png\')"><img src="'+TJPshadow+'ne.png" style="width:'+TJPshadowthick*2+'px; height:'+TJPshadowthick*2+'px;'+st3 +

  st1+''+(TJPzoomheight-TJPshadowthick*2)+'px 0 0 0px; width:'+TJPshadowthick*2+'px; height:'+TJPshadowthick*2+'px;'+st2+'\''+TJPshadow+'sw.png\',sizingMethod=\'scale\')"><img src="'+TJPshadow+'sw.png" style="width:'+TJPshadowthick*2+'px; height:'+TJPshadowthick*2+'px;'+st3 +

  st1+''+(TJPzoomheight-TJPshadowthick*2)+'px 0 0 '+(TJPzoomwidth-TJPshadowthick*2)+'px; width:'+TJPshadowthick*2+'px; height:'+TJPshadowthick*2+'px;'+st2+'\''+TJPshadow+'se.png\',sizingMethod=\'scale\')"><img src="'+TJPshadow+'se.png" style="width:'+TJPshadowthick*2+'px; height:'+TJPshadowthick*2+'px;'+st3 +

  

  st1+'0 0 0 '+(TJPshadowthick*2)+'px; width:'+(TJPzoomwidth-TJPshadowthick*4)+'px; height:'+TJPshadowthick*2+'px;'+st2+'\''+TJPshadow+'n.png\',sizingMethod=\'scale\')"><img src="'+TJPshadow+'n.png" style="width:'+(TJPzoomwidth-TJPshadowthick*4)+'px; height:'+TJPshadowthick*2+'px;'+st3 +

  st1+''+(TJPshadowthick*2)+'px 0 0 0; width:'+(TJPshadowthick*2)+'px; height:'+(TJPzoomheight-TJPshadowthick*4)+'px;'+st2+'\''+TJPshadow+'w.png\',sizingMethod=\'scale\')"><img src="'+TJPshadow+'w.png" style="width:'+(TJPshadowthick*2)+'px; height:'+(TJPzoomheight-TJPshadowthick*4)+'px;'+st3 +

  st1+''+(TJPshadowthick*2)+'px 0 0 '+(TJPzoomwidth-TJPshadowthick*2)+'px; width:'+(TJPshadowthick*2)+'px; height:'+(TJPzoomheight-TJPshadowthick*4)+'px;'+st2+'\''+TJPshadow+'e.png\',sizingMethod=\'scale\')"><img src="'+TJPshadow+'e.png" style="width:'+(TJPshadowthick*2)+'px; height:'+(TJPzoomheight-TJPshadowthick*4)+'px;'+st3 +

  st1+''+(TJPzoomheight-TJPshadowthick*2)+'px 0 0 '+(TJPshadowthick*2)+'px; width:'+(TJPzoomwidth-TJPshadowthick*4)+'px; height:'+TJPshadowthick*2+'px;'+st2+'\''+TJPshadow+'s.png\',sizingMethod=\'scale\')"><img src="'+TJPshadow+'s.png" style="width:'+(TJPzoomwidth-TJPshadowthick*4)+'px; height:'+TJPshadowthick*2+'px;'+st3;

 }

 ;

 //marker - zoomer

 obj.parentNode.insertBefore(TJPwin,TJPstage);



 TJPresize(obj);

}



function TJPresize(obj) {

 sbr=0; sbl=0;

 if(TJPzoomwidth-2*TJPborderthick-3*TJPshadowthick < 22) {sbr=1}

 if(TJPzoomheight-2*TJPborderthick-3*TJPshadowthick < 22) {sbr=1}

 if(TJPzoomwidth > parseFloat(obj.style.width)) {sbl=1;}

 if(TJPzoomheight > parseFloat(obj.style.height)) {sbl=1}

 

 if(sbr==1 && sbl == 1) {

  TJPzoomwidth=parseFloat(obj.style.width)/2;

  TJPzoomheight=parseFloat(obj.style.height)/2;

  TJPzoomratio=TJPzoomheight/TJPzoomwidth;

 }



 if(sbr==1) {

  if(TJPzoomwidth<TJPzoomheight) {

   TJPzoomheight=TJPzoomheight/TJPzoomwidth*(22+2*TJPborderthick+3*TJPshadowthick); TJPzoomwidth=22+2*TJPborderthick+3*TJPshadowthick;

  } else {

   TJPzoomwidth=TJPzoomwidth/TJPzoomheight*(22+2*TJPborderthick+3*TJPshadowthick); TJPzoomheight=22+2*TJPborderthick+3*TJPshadowthick;

  }

 }

 



 if(sbl==1) {

  if(parseFloat(obj.style.width)/parseFloat(obj.style.height) > TJPzoomwidth/TJPzoomheight) {

   TJPzoomheight=parseFloat(obj.style.height);

   TJPzoomwidth=TJPzoomheight/TJPzoomratio;

  } else {

   TJPzoomwidth=parseFloat(obj.style.width);

   TJPzoomheight=TJPzoomratio*TJPzoomwidth;

  }

 }



 TJPzoomwidth=Math.floor(TJPzoomwidth/2)*2;

 TJPzoomheight=Math.floor(TJPzoomheight/2)*2;



 ww=obj.parentNode.getElementsByTagName('div')[0];

 ww.style.width=TJPzoomwidth+'px';

 ww.style.height=TJPzoomheight+'px';

 w=ww.getElementsByTagName('div')[0];

 w.style.width=TJPzoomwidth-TJPshadowthick*2+'px';

 w.style.height=TJPzoomheight-TJPshadowthick*2+'px';

 w=ww.getElementsByTagName('div')[1];

 w.style.width=TJPzoomwidth-TJPshadowthick*2-TJPborderthick*2+'px';

 w.style.height=TJPzoomheight-TJPshadowthick*2-TJPborderthick*2+'px';

 if(TJPshadowthick > 0) {

  w=ww.getElementsByTagName('span')[1]; w.style.margin='0 0 0 '+(TJPzoomwidth-TJPshadowthick*2)+'px';

  w=ww.getElementsByTagName('span')[2]; w.style.margin=(TJPzoomheight-TJPshadowthick*2)+'px 0 0 0px';

  w=ww.getElementsByTagName('span')[3]; w.style.margin=(TJPzoomheight-TJPshadowthick*2)+'px 0 0 '+(TJPzoomwidth-TJPshadowthick*2)+'px';



  w=ww.getElementsByTagName('span')[6]; w.style.margin=(TJPshadowthick*2)+'px 0 0 '+(TJPzoomwidth-TJPshadowthick*2)+'px';

  w=ww.getElementsByTagName('span')[7]; w.style.margin=(TJPzoomheight-TJPshadowthick*2)+'px 0 0 '+(TJPshadowthick*2)+'px';



  www=(TJPzoomwidth-TJPshadowthick*4)+'px';

  w=ww.getElementsByTagName('span')[4]; w.style.width=www;

  w=w.getElementsByTagName('img')[0]; w.style.width=www;

  w=ww.getElementsByTagName('span')[7]; w.style.width=www;

  w=w.getElementsByTagName('img')[0]; w.style.width=www;

  

  www=(TJPzoomheight-TJPshadowthick*4)+'px';

  w=ww.getElementsByTagName('span')[5]; w.style.height=www;

  w=w.getElementsByTagName('img')[0]; w.style.height=www;

  w=ww.getElementsByTagName('span')[6]; w.style.height=www;

  w=w.getElementsByTagName('img')[0]; w.style.height=www;

 }

}



function TJPfindposy(obj) {

 var curtop = 0;

 if(!obj) {return 0;}

 if (obj.offsetParent) {

  while (obj.offsetParent) {

   curtop += obj.offsetTop

   obj = obj.offsetParent;

  }

 } else if (obj.y) {

  curtop += obj.y;

 }

 return curtop;

}



function TJPfindposx(obj) {

 var curleft = 0;

 if(!obj) {return 0;}

 if (obj && obj.offsetParent) {

  while (obj.offsetParent) {

   curleft += obj.offsetLeft

   obj = obj.offsetParent;

  }

 } else if (obj.x) {

  curleft += obj.x;

 }

 return curleft;

}





function TJPhandlemouse(evt,obj) {

 var evt = evt?evt:window.event?window.event:null; if(!evt) { return false; }

 if(evt.pageX) {

  nowx=evt.pageX-TJPfindposx(obj)-TJPadjustx;

  nowy=evt.pageY-TJPfindposy(obj)-TJPadjusty;

 } else {

  if(document.documentElement && document.documentElement.scrollTop) {

   nowx=evt.clientX+document.documentElement.scrollLeft-TJPfindposx(obj)-TJPadjustx;

   nowy=evt.clientY+document.documentElement.scrollTop-TJPfindposy(obj)-TJPadjusty;

  } else {

   nowx=evt.x+document.body.scrollLeft-TJPfindposx(obj)-TJPadjustx;

   nowy=evt.y+document.body.scrollTop-TJPfindposy(obj)-TJPadjusty;

  }

 }

 if(evt.type == 'mousemove') {

  TJPsetwin(obj,nowx,nowy);

 } else if(evt.type == 'mousedown') {

  TJPmouse=1; //left: 1, middle: 2, right: 3

  TJPmousey=nowy;

  TJPmousex=nowx;

 } else if(evt.type =='mouseup') {

  TJPmouse=0;

 } else if(evt.type =='mouseout') {

  TJPmouse=0;

  if(navigator.appVersion.indexOf('Mac') == -1 || navigator.appVersion.indexOf('MSIE') == -1) { //hi Mac IE

   x=obj.parentNode;

   x.removeChild(x.getElementsByTagName('div')[0]);

   x.removeChild(x.getElementsByTagName('div')[0]);

  }

 }

}





// TJPzoom 3 * János Pál Tóth

// Docs @ http://valid.tjp.hu/tjpzoom/ 

// News @ http://tjpzoom.blogspot.com/





function TJPsetwin(obj,nowx,nowy) {

 obj.parentNode.getElementsByTagName('div')[0].style.display='block';

 if(TJPzoomoffset=='smart') {

  TJPzoomoffsetx=.1+.8*nowx/parseFloat(obj.style.width);

  TJPzoomoffsety=.1+.8*nowy/parseFloat(obj.style.height);

 }



 stage=obj.parentNode.getElementsByTagName('div')[0];

 if(TJPmouse == 1) {

  if(Math.abs(nowy-TJPmousey) >= 1) {

   TJPzoomamount*=((nowy>TJPmousey)?(0.909):(1.1));

   TJPmousey=nowy;

   if(TJPzoomamount < TJPzoomamountmin) {TJPzoomamount=TJPzoomamountmin;}

   if(TJPzoomamount > TJPzoomamountmax) {TJPzoomamount=TJPzoomamountmax;}

   stage.getElementsByTagName('div')[1].getElementsByTagName('img')[0].style.width=  parseInt(obj.style.width)*TJPzoomamount+'px';

   stage.getElementsByTagName('div')[1].getElementsByTagName('img')[0].style.height=  parseInt(obj.style.height)*TJPzoomamount+'px';

   if(stage.getElementsByTagName('div')[1].getElementsByTagName('img')[1]) {

    stage.getElementsByTagName('div')[1].getElementsByTagName('img')[1].style.width= stage.getElementsByTagName('div')[1].getElementsByTagName('img')[0].style.width;

    stage.getElementsByTagName('div')[1].getElementsByTagName('img')[1].style.height= stage.getElementsByTagName('div')[1].getElementsByTagName('img')[0].style.height;

   }

  }

  if(Math.abs(nowx-TJPmousex) >= 12 && TJPzoomwindowlock==0) {

   TJPzoomwidth*=((nowx>TJPmousex)?(1.1):(0.909));

   TJPzoomheight=TJPzoomwidth*TJPzoomratio;

   TJPresize(obj);

   TJPmousex=nowx;

  }

 }

 stage.style.marginLeft=nowx-(TJPzoomwidth -2*TJPborderthick-2*TJPshadowthick)*TJPzoomoffsetx-TJPborderthick-TJPshadowthick+'px';

 stage.style.marginTop= nowy-(TJPzoomheight-2*TJPborderthick-2*TJPshadowthick)*TJPzoomoffsety-TJPborderthick-TJPshadowthick+'px';

 clip1=0; clip2=TJPzoomwidth; clip3=TJPzoomheight; clip4=0;

 nwidth=TJPzoomwidth; nheight=TJPzoomheight;

 tmp=(1-2*TJPzoomoffsetx)*(TJPborderthick+TJPshadowthick);

 

 if(nowx-TJPzoomwidth*TJPzoomoffsetx < tmp) {

  clip4=TJPzoomwidth*TJPzoomoffsetx-nowx + tmp;

 } else if(parseFloat(nowx-TJPzoomwidth*TJPzoomoffsetx+TJPzoomwidth) > parseFloat(obj.style.width)+tmp) {

  clip2= TJPzoomwidth*TJPzoomoffsetx - nowx + parseFloat(obj.style.width)+tmp;

  nwidth=TJPzoomwidth*TJPzoomoffsetx-nowx+parseInt(obj.style.width)+TJPborderthick+TJPshadowthick;

 }

 

 tmp=(1-2*TJPzoomoffsety)*(TJPborderthick+TJPshadowthick);

 

 if(nowy-TJPzoomheight*TJPzoomoffsety < tmp) {

  clip1=TJPzoomheight*TJPzoomoffsety-nowy+tmp;

 } else if(parseFloat(nowy-TJPzoomheight*TJPzoomoffsety+TJPzoomheight) > parseFloat(obj.style.height)+tmp) {

  clip3= TJPzoomheight*TJPzoomoffsety - nowy + parseFloat(obj.style.height)+tmp;

  nheight=TJPzoomheight*TJPzoomoffsety - nowy + parseFloat(obj.style.height)+TJPborderthick+TJPshadowthick;

 }

 stage.style.width=nwidth+'px';

 stage.style.height=nheight+'px';



 stage.style.clip='rect('+clip1+'px,'+clip2+'px,'+clip3+'px,'+clip4+'px)';



 if(nowy-TJPzoomoffsety*(TJPzoomheight-2*TJPborderthick-2*TJPshadowthick) < 0) { t=-(nowy-TJPzoomoffsety*(TJPzoomheight-2*TJPborderthick-2*TJPshadowthick))} 

 else if(nowy-TJPzoomoffsety*(TJPzoomheight-2*TJPborderthick-2*TJPshadowthick) > parseFloat(obj.style.height)-TJPzoomheight+TJPborderthick*2+TJPshadowthick*2) { t=-TJPzoomamount*parseFloat(obj.style.height)+TJPzoomheight-TJPborderthick*2-TJPshadowthick*2-((nowy-TJPzoomoffsety*(TJPzoomheight-2*TJPborderthick-2*TJPshadowthick))-(parseFloat(obj.style.height)-TJPzoomheight+TJPborderthick*2+TJPshadowthick*2)); }

 else { t=(-TJPzoomamount*parseFloat(obj.style.height)+TJPzoomheight-TJPborderthick*2-TJPshadowthick*2)/(parseFloat(obj.style.height)-TJPzoomheight+TJPborderthick*2+TJPshadowthick*2)*(nowy-TJPzoomoffsety*(TJPzoomheight-2*TJPborderthick-2*TJPshadowthick)) }

 stage.getElementsByTagName('div')[1].getElementsByTagName('img')[0].style.marginTop=t+'px';



 if(stage.getElementsByTagName('div')[1].getElementsByTagName('img')[1]) {

  stage.getElementsByTagName('div')[1].getElementsByTagName('img')[1].style.marginTop=t+'px';

 }



 if(nowx-TJPzoomoffsetx*(TJPzoomwidth-2*TJPborderthick-2*TJPshadowthick) < 0) { t=-(nowx-TJPzoomoffsetx*(TJPzoomwidth-2*TJPborderthick-2*TJPshadowthick))} 

 else if(nowx-TJPzoomoffsetx*(TJPzoomwidth-2*TJPborderthick-2*TJPshadowthick) > parseFloat(obj.style.width)-TJPzoomwidth+TJPborderthick*2+TJPshadowthick*2) { t=-TJPzoomamount*parseFloat(obj.style.width)+TJPzoomwidth-TJPborderthick*2-TJPshadowthick*2-((nowx-TJPzoomoffsetx*(TJPzoomwidth-2*TJPborderthick-2*TJPshadowthick))-(parseFloat(obj.style.width)-TJPzoomwidth+TJPborderthick*2+TJPshadowthick*2)); }

 else { t=(-TJPzoomamount*parseFloat(obj.style.width)+TJPzoomwidth-TJPborderthick*2-TJPshadowthick*2)/(parseFloat(obj.style.width)-TJPzoomwidth+TJPborderthick*2+TJPshadowthick*2)*(nowx-TJPzoomoffsetx*(TJPzoomwidth-2*TJPborderthick-2*TJPshadowthick)) }

 stage.getElementsByTagName('div')[1].getElementsByTagName('img')[0].style.marginLeft=t+'px';



 if(stage.getElementsByTagName('div')[1].getElementsByTagName('img')[1]) {

  stage.getElementsByTagName('div')[1].getElementsByTagName('img')[1].style.marginLeft=t+'px';

 }

}



function TJPinit() {

 TJPadjustx=0; TJPadjusty=0;

 if(navigator.userAgent.indexOf('MSIE')>-1) {TJPadjustx=2;TJPadjusty=2;}

 if(navigator.userAgent.indexOf('Opera')>-1) {TJPadjustx=0; TJPadjusty=0;}

 if(navigator.userAgent.indexOf('Safari')>-1) {TJPadjustx=1; TJPadjusty=2;}

}



// configuration - do not modify the following, instead read the behaviors.html file in the tutorial!

var TJPon=new Array();

var TJPadjustx,TJPadjusty;

var TJPmouse=0; var TJPmousey; var TJPmousex;

var TJPloading='<div style="background-color: #ffeb77; color: #333333; padding:2px; font-family: verdana,arial,helvetica; font-size: 10px;">Loading...</div>';



var TJPzoomwidth=160;

var TJPzoomheight=120;

var TJPzoomratio;

var TJPzoomwindowlock=0;



var TJPzoomoffsetx=.5;

var TJPzoomoffsety=.5;

var TJPzoomoffset;



var TJPzoomamount=4;

var TJPzoomamountmax=12;

var TJPzoomamountmin=1;



var TJPborderthick=2;

var TJPbordercolor='#888888';



var TJPshadowthick=8;

var TJPshadow='/dropshadow/';



TJPinit();



// TJPzoom 3 * János Pál Tóth

// Docs @ http://valid.tjp.hu/tjpzoom/ 

// News @ http://tjpzoom.blogspot.com/