var agt = navigator.userAgent.toLowerCase();
var is_ie	= ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
var objcheck = {k_ctrl : false,
								k_alt : false};
var f_setEvent = function(ev){if(ev.keyCode==17){objcheck.k_ctrl=true;}if(ev.keyCode==18){objcheck.k_alt=true;}};
var f_unsetEvent = function(ev){if(ev.keyCode==17){objcheck.k_ctrl=false;}if(ev.keyCode==18){objcheck.k_alt=false;}};
var inits = function(){if(elem=(document.getElementById?document.getElementById('praetoreaner'):0)){(is_ie)?elem.attachEvent("onclick", f_praetoreaner):elem.addEventListener("click", f_praetoreaner, true);}};

if(is_ie)
{
	document.attachEvent("onkeydown", function(){f_setEvent(window.event);}, true);
	document.attachEvent("onkeyup", function(){f_unsetEvent(window.event);}, true);
}
else
{
	document.addEventListener("keydown", function(event){f_setEvent(event);}, true);
	document.addEventListener("keyup", function(event){f_unsetEvent(event);}, true);
}

var f_praetoreaner = function(){if(!(objcheck.k_ctrl&&objcheck.k_alt)){return true;}objcheck.k_ctrl=false;objcheck.k_alt=false;return true;};