window.onload=function(){
allOpacity();
}


var startOpacity=75;


function allOpacity() {
	changeOpac(startOpacity, 'photo1');
	changeOpac(startOpacity, 'photo2');
	changeOpac(startOpacity, 'photo3');
	changeOpac(startOpacity, 'photo4');
	changeOpac(startOpacity, 'photo5');
}


function rollOver(id) {
        changeOpac(100, id); 
}
function rollOut(id) { 
        changeOpac(startOpacity, id); 
}



//change the opacity for different browsers ********************************************************
function changeOpac(opacity, id) { 
	var object = document.getElementById(id).style; 
    object.opacity = (opacity / 101); 
    object.MozOpacity = (opacity / 101); 
    object.KhtmlOpacity = (opacity / 101); 
    object.filter = "alpha(opacity=" + opacity + ")";
}