function changeImage11(){
 if(mypop.style.display="none"){
 mypop.style.pixelLeft=document.body.scrollLeft+event.clientX;
 mypop.style.pixelTop=document.body.scrollTop+event.clientY;
 mypop.style.display="block";
}else{
 mypop.style.display="none";
}
}

function changeImage21(){
 if(mypop1.style.display="none"){
 mypop1.style.pixelLeft=document.body.scrollLeft+event.clientX;
 mypop1.style.pixelTop=document.body.scrollTop+event.clientY;
 mypop1.style.display="block";
}else{
 mypop1.style.display="none";
}
}

function changeImage31(){
 if(mypop2.style.display="none"){
 mypop2.style.pixelLeft=document.body.scrollLeft+event.clientX;
 mypop2.style.pixelTop=document.body.scrollTop+event.clientY;
 mypop2.style.display="block";
}else{
 mypop2.style.display="none";
}
}

function changeImage41(){
 if(mypop3.style.display="none"){
 mypop3.style.pixelLeft=document.body.scrollLeft+event.clientX;
 mypop3.style.pixelTop=document.body.scrollTop+event.clientY;
 mypop3.style.display="block";
}else{
 mypop3.style.display="none";
}
}

function changeImage51(){
 if(mypop4.style.display="none"){
 mypop4.style.pixelLeft=document.body.scrollLeft+event.clientX;
 mypop4.style.pixelTop=document.body.scrollTop+event.clientY;
 mypop4.style.display="block";
}else{
 mypop4.style.display="none";
}
}
function changeImage12(){
 mypop.style.display="none";
}
function changeImage22(){
 mypop1.style.display="none";
}
function changeImage32(){
 mypop2.style.display="none";
}
function changeImage42(){
 mypop3.style.display="none";
}
function changeImage52(){
 mypop4.style.display="none";
}