function openfull(theURL,winName,features,w,h) { //v2.0
	newwin=window.open(theURL,winName,features,w,h);
	newwin.moveTo(0,0);
	newwin.resizeTo(screen.availWidth,screen.availHeight)
	newwin.focus()
}

function changement()
{
	 if ((document.getElementById('login').value != '') && (document.getElementById('pass').value != '') ){
		 document.getElementById('envoi').disabled=false;
	}else{
		 document.getElementById('envoi').disabled=true;
	}
}