/* 
   onclick="zoomBox(event,this);return false"
   
   To zoom into a new, positioned window add width, height, left, and top
   
   onclick="zoomBox(event,this,500,400,100,50);return false"
   */
 
var maxW,maxH,fromX,fromY,toX,toY,adjX,adjY,zBox,zStep=0,zLink,zNew;
 
function zoomBox(evt,zlink,maxw,maxh,tox,toy) {
if (arguments.length > 2) zNew=1;
scrollH=(window.pageYOffset!=null)?window.pageYOffset:document.body.scrollTop;
maxW=maxw?maxw:window.innerWidth?innerWidth:document.body.clientWidth;
maxH=maxh?maxh:window.innerHeight?innerHeight:document.body.clientHeight;
toX=tox?tox:0;
toY=(toy?toy:0)+scrollH;
fromX=evt.pageX?evt.pageX:evt.clientX;
fromY=(evt.pageY?evt.pageY:evt.clientY)+(document.all?scrollH:0);
adjX=toX+evt.screenX-fromX;
adjY=toY+evt.screenY-fromY;
if (document.createElement && document.body.appendChild && !zBox) {
 zBox=document.createElement("div");
 zBox.style.position="absolute";
 document.body.appendChild(zBox);
} else if (document.all && !zBox) {
 document.all[document.all.length-1].outerHTML+='<div id="zBoxDiv" style="position:absolute"></div>';
 zBox=document.all.zBoxDiv;
} else if (document.layers && !zBox) {
 zBox=new Layer(maxW);
 zBox.style=zBox;
 }
zLink=zlink;
doZoom();
}
 
function doZoom() {
zStep+=1;
zPct=(10-zStep)/10
if (document.layers) {
 zBox.moveTo(toX+zPct*(fromX-toX),toY+zPct*(fromY-toY));
 zBox.document.open();
 zBox.document.write("<table width='"+maxW*(1-zPct)+"' height="+maxH*(1-zPct)+" border=2 cellspacing=0><tr><td></td></tr></table>");
 zBox.document.close();
 } else {
 zBox.style.border="2px solid #999999";
 zBox.style.left=toX+zPct*(fromX-toX);
 zBox.style.top=toY+zPct*(fromY-toY);
 zBox.style.width=maxW*(1-zPct);
 zBox.style.height=maxH*(1-zPct);
 }
zBox.style.visibility="visible";
if (zStep < 10) setTimeout("doZoom("+fromX+","+fromY+","+toX+","+toY+")",30);
else {
 zBox.style.visibility='hidden';
 zStep=0;
 if (zLink && !zNew) location.href=zLink.href;
 else if (zLink && zNew) {
  var w=window.open(zLink.href,'','width='+maxW+',height='+maxH+',left='+adjX+',top='+adjY+',scrollbars,resizable');
  zNew=null;
  }
 }
}