targeting specific browsers

[hablablow]

Hi,
I would like to hide content to specific browsers: Opera and Safari.
Both script work fine alone. But when i mix them, as shown below, Opera just misses the part he should read.
Why is that?
Thanks for incomming answers.

Guillaume.



// fix z-index layer in Opera

function killOpera() {
var op = navigator.userAgent.indexOf('Opera') != -1;

if (op) {
document.getElementById('topSword').style.display = 'none';
document.getElementById('topSwordOpera').style.display = 'block';

}
}

onload = killOpera;


// -->

// fix z-index flash layer transparecy in Safari

function killSafari() {
var sa = navigator.userAgent.indexOf('Safari') != -1;

if (sa) {
document.getElementById('topSword').style.display = 'none';
document.getElementById('topSwordOpera').style.display = 'block';

}
}

onload = killSafari;


// -->