function number_check(number,line)
{	
	var reg=/\s/g;
	number=number.replace(reg,"");
	
	if(line=='apl')
	{
		if(number.length==10)
			return true;
		else
			return false;
	}
	
	if(number.length==11)
		return true;
	else
		return false;
}

function bookmark(url,title){
  if ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4)) {
  window.external.AddFavorite(url,title);
  } else if (navigator.appName == "Netscape") {
    window.sidebar.addPanel(title,url,"");
  } else {
    alert("Press CTRL-D (Netscape) or CTRL-T (Opera) to bookmark");
  }
}

function tracking_act()
{
	var line = document.getElementById('idLine').options[document.getElementById('idLine').selectedIndex].value;
	var numb = document.getElementById('idNumber').value;
	var ch_cn = document.getElementById('id_cntr').checked;
		
	if(numb=="")
	{
		alert("Enter container or document number.");
	}
	else if(ch_cn && !number_check(numb,line) && line!='ems' && line!='tnt' && line!='dhl')	
	{
		alert("Container number invalid. Number length should be of 11 symbols.");
	}
	else if(line=="")
	{
		alert("Shipping line not selected.");
	}	
	else
	{	
	
	document.getElementById('formTracking').submit();
	
	}
}
function historyClick()
{
	if(document.getElementById('idTrackingHistory').style.display=='none')
	{
	document.getElementById('idTrackingHistory').style.display='block';
	document.getElementById('idTrackingHistoryArrow').src='/pic/arrow_collapse.gif';
	}
	else
	{
	document.getElementById('idTrackingHistory').style.display='none';
	document.getElementById('idTrackingHistoryArrow').src='/pic/arrow_expand.gif';
	
	}
}
function trackingChangeType(line)
{
	if(line=='ems'||line=='tnt'||line=='norasia'||line=='apl'||line=='dhl')
	{
	document.getElementById('idTrackingType').style.display = "none";
	}
	else
	{
	document.getElementById('idTrackingType').style.display = "block";
	}
}