function form_submit(){
	document.getElementById("submit_btn").disabled = true;
	document.getElementById("formular").style.visibility = "hidden";
	document.getElementById("wait").style.visibility = "visible";
	if(!form_submitted){
		var form_submitted = true;
		return true;
	} else {
		return false;	
	}
}

function toggle_help(element_name){
	var element = document.getElementById(element_name);
	if(element.style.display != "block"){
		element.style.display = "block";
	} else {
		element.style.display = "none";
	}
}


function print_page(){
	window.print();
}