function rollOn(cont){
var roll = document.getElementById('rollover')
switch ( cont )
{
case 'sa': roll.style.backgroundPosition="0 0";
break;
case 'na': roll.style.backgroundPosition="0 -271px";
break;
case 'af': roll.style.backgroundPosition="0 -542px";
break;
case 'eu': roll.style.backgroundPosition="0 -813px";
break;
case 'as': roll.style.backgroundPosition="0 -1084px";
break;
}
}
function rollOff(){
document.getElementById('rollover').style.backgroundPosition="0 271px"
}
function enlarge(image,am,al){
var ampla = am;
var altura = al;
strURL = "../img/"+image;
poshoritz = (screen.width) ? (screen.width-ampla)/2 : 0;
posvert = (screen.height) ? (screen.height-altura)/2 : 0;
strW = 'toolbar=0,directories=0,location=0,status=no,menubar=0,resizable=1,copyhistory=0,scrollbars=1,width='+ ampla + ',height='+ altura + ',top='+ posvert + ',left='+ poshoritz;
eval("var popup=window.open('','pop','" + strW + "')");
popup.document.write('Graphical user interface
');
}
function popup(desti,nom,am,al){
var ampla = am;
var altura = al;
var strURL = desti;
var poshoritz = (screen.width) ? (screen.width-ampla)/2 : 0;
var posvert = (screen.height) ? (screen.height-altura)/2 : 0;
var strW = 'toolbar=0,directories=0,location=0,status=no,menubar=0,resizable=1,copyhistory=0,scrollbars=1,width='+ ampla + ',height='+ altura + ',top='+ posvert + ',left='+ poshoritz;
eval("window.open('" + strURL + "',nom,'" + strW + "')");
}