function addOnloadEvent(fnc) {
if (typeof window.addEventListener != "undefined")
window.addEventListener( "load", fnc, false);
else if ( typeof window.attachEvent != "undefined" ){
window.attachEvent( "onload", fnc );
}
else {
if ( window.onload != null) {
var oldOnload = window.onload;
window.onload = function ( e ) {
oldOnload( e );
window[fnc]();
};
}
else
window.onload = fnc;
}
}