window.onload = function() {
if (document.getElementById) {
var element = document.getElementById('prot');
var element2 = document.getElementById('prot2');
}
else if (document.all) {
var element = document.all['prot'];
var element2 = document.all['prot2'];
}
else if (document.layers) {
var element = document.layers['prot'];
var element2 = document.layers['prot2'];
}
else {
alert("Yor browser doesnt support javascript DOM");
}
element.onselectstart = function () { return false; } // ie
element.onmousedown = function () { return false; } // mozilla

element2.onselectstart = function () { return false; } // ie
element2.onmousedown = function () { return false; } // mozilla
}