function topmenu(dies,das){
    if (document.getElementById(das).style.display=='none') {
        document.getElementById(das).style.display='block';
        dies.style.backgroundColor='#808080';
    } else {
        document.getElementById(das).style.display='none';
        dies.style.backgroundColor='#b3b3b3';
    }
}

function checkLen(forml, maxLen){
	var txt=forml.value;
	if(txt.length>maxLen){
	      forml.value=txt.substring(0,maxLen);
	}
}

function changetype(value) {
	if (value == 'Oneway') {
        document.getElementById('stopover').style.display = 'none';		
	} else {
		document.getElementById('stopover').style.display = 'block';
	}
}

function menu(dies){
    if (document.getElementById(dies).style.display=='none') {
        document.getElementById(dies).style.display='block';
    } else {
        document.getElementById(dies).style.display='none';
    }		
}
function menuout(dies){
    document.getElementById(dies).style.display='none';
}