function opensmall()
{ 
window.open('',"popup1","width=200,height=200,top="+(screen.height-200)/2+",left="+(screen.width-200)/2+",statusbar=no,toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,copyhistory=no,resizable=no");
}

function openmedium()
{ window.open('',"popup2","width=400,height=300,top="+(screen.height-300)/2+",left="+(screen.width-400)/2+",statusbar=no,toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,copyhistory=no,resizable=no");
}

function openmedium2()
{ window.open('',"popupcgv","width=778,height=500,top="+(screen.height-500)/2+",left="+(screen.width-778)/2+",menubar=no,scrollbars=yes,statusbar=no");
}


function openlarge()
{ window.open('',"popup3","width=777,height=400,top="+(screen.height-400)/2+",left="+(screen.width-777)/2+",statusbar=no,toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,copyhistory=no,resizable=no");
}

function openimage(larg, haut, nom)
{ 
window.open('',nom,"width="+larg+",height="+haut+",top=10,left=10,statusbar=no,toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,copyhistory=no,resizable=no");
}

function openami()
{ window.open('',"popup5","width=380,height=312,top="+(screen.height-312)/2+",left="+(screen.width-380)/2+",statusbar=no,toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,copyhistory=no,resizable=no");
}