/* General Stuff */

function chainWindowFunc (funcname, newfunc) {
    var oldfunc = window[funcname];
    if(oldfunc) {
      window[funcname] = function() { oldfunc(); newfunc(); };
    } else {
      window[funcname] = newfunc;
    }
}

window.addOnload   = function(func) { chainWindowFunc("onload",func); };
window.addOnUnload = function(func) { chainWindowFunc("onunload",func); };

function confirmAction (url,question) {
	if (confirm(question)) 
	  window.location=url;
}

function submit_form(id) {
	var form = document.getElementById(id);
	form.submit();
	return false;
}