var win = null;
function NewWindow(mypage,myname,w,h,scroll){
LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
TopPosition = (screen.height) ? (screen.height-h)/4 : 0;
settings =
'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',resizable, location,directories,menubar,status,toolbar'

win = window.open(mypage,myname,settings)
}

<!--
function linkDisplay(selection) {
if (selection=="1") {
document.form.info.value="RICERCA VELOCE RESIDENZIALI";
document.form.go.value="listing_browse.php?type[]=Abitazione";
}
else if(selection=="2") {
document.form.info.value="RICERCA VELOCE TERRENI";
document.form.go.value="listing_browse.php?type[]=Terreni";
}
else if(selection=="3") {
document.form.info.value="RICERCA VELOCE RUSTICI";
document.form.go.value="listing_browse.php?type[]=Rustici";
}
else if(selection=="4") {
document.form.info.value="RICERCA VELOCE COMMERCIALI";
document.form.go.value="listing_browse.php?type[]=Commerciali";
}
else if(selection=="5") {
document.form.info.value="MOSTRA TUTTI GLI ANNUNCI";
document.form.go.value="listing_browse.php";
}
else if(selection=="6") {
document.form.info.value="RICERCA AVANZATA";
document.form.go.value="listingsearch.php";
}
else if(selection=="7") {
document.form.info.value="RICERCA AFFITTO";
document.form.go.value="listing_browse.php?type=Affitto";
}

else {
document.form.info.value = "Ricerca";
document.form.go.value="listingsearch.php";
   }
}
function moreInfo() {
var page=document.form.go.value;
window.location=page;
}
//-->