var hide=true;
    V=new Array();

function hidePic()
{
 myalt.style.visibility="hidden";
 myalt.innerHTML="";
 myalt.style.top=0;
 myalt.style.left=0;
 hide=true;
}

function movePic(word)
{
 myalt.innerHTML=word;
 _x=window.event.clientX;
 _y=window.event.clientY;
 _dx=5;
 left=false;
 right=false;
 if(_dx+_x+myalt.clientWidth>document.body.clientWidth) 
 {
  _x=document.body.clientWidth-myalt.clientWidth-_dx;
  left=true;
 }
 if(_dx+_y+myalt.clientHeight>document.body.clientHeight)
 {
  _y=document.body.clientHeight-myalt.clientHeight-_dx;
  right=true;
 }
 if(left&&right)_y=document.body.clientHeight-_dx*4;
 myalt.style.left=_x;
 myalt.style.top=_y+document.body.scrollTop;
 if(hide)
 {
  myalt.innerHTML=word;
  myalt.style.visibility="visible";
  hide=false;
 } 
}

function img_act(imgName)
{
 if (document.images)
 { 
  imgOn = eval (imgName + "on.src");
  document [imgName].src = imgOn;
 }
}

function img_inact(imgName)
{
 if (document.images)
 {
  imgOff = eval(imgName + "off.src");
  document [imgName].src = imgOff;
 }
}