function zoomin(){
if(parent.parent.document.body.style.zoom!=0) 
parent.parent.document.body.style.zoom*=1.05; 
else 
parent.parent.document.body.style.zoom=1.05;
}
function zoomout(){
if(parent.parent.document.body.style.zoom!=0) 
parent.parent.document.body.style.zoom*=0.95; 
else 
parent.parent.document.body.style.zoom=0.95;
}
function zoomrest(){
if(parent.parent.document.body.style.zoom!=0) 
parent.parent.document.body.style.zoom*=0; 
else 
parent.parent.document.body.style.zoom=0;
}