function checkLogin(frm)
{
	if(!validID(Trim(frm.uid.value)))
	{
		alert("Valid User ID required.");
		frm.uid.focus();
		frm.uid.select();
		return false;
	}
	if(!validPassword(Trim(frm.pwd.value)))
	{
		alert("Valid Password required.");
		frm.pwd.focus();
		frm.pwd.select();
		return false;
	}
	return true;
}
function Trim(TRIM_VALUE)
{
	if(TRIM_VALUE.length < 1)
	{
		return "";
	}
	TRIM_VALUE = RTrim(TRIM_VALUE);
	TRIM_VALUE = LTrim(TRIM_VALUE);
	if(TRIM_VALUE=="")
		return "";
	else
		return TRIM_VALUE;
}
function RTrim(VALUE)
{
	var w_space = String.fromCharCode(32);
	var v_length = VALUE.length;
	var strTemp = "";
	if(v_length < 0)
		return "";
	
	var iTemp = v_length -1;

	while(iTemp > -1)
	{
		if(VALUE.charAt(iTemp) == w_space){}
		else
		{
			strTemp = VALUE.substring(0,iTemp +1);
			break;
		}
		iTemp = iTemp-1;

	}
	return strTemp;
} 

function LTrim(VALUE)
{
	var w_space = String.fromCharCode(32);
	if(v_length < 1)
		return"";

	var v_length = VALUE.length;
	var strTemp = "";

	var iTemp = 0;

	while(iTemp < v_length)
	{
		if(VALUE.charAt(iTemp) == w_space){}
	
		else
		{
			strTemp = VALUE.substring(iTemp,v_length);
			break;
		}
		iTemp = iTemp + 1;
	} 
	return strTemp;
}
function validPhone(pnum)
{
	if(pnum=='')
		return false;
    var charset="0123456789()-+ ";

    for(i=0; i< pnum.length; i++)
    {
        if(charset.indexOf(pnum.charAt(i))<0)
        {   
            return false;
        }
    }
	
	if(pnum.length<7)
		return false;
		
    return true;
}
function validNumbers(field, dot) 
{
	if(Trim(field.value)=='')
		return false;
		
	var valid;
	if(dot=='.')
		valid = "1234567890.";
	else
		valid = "1234567890";
		
	var ok = "yes";
	var temp;

	for (var i=0; i<field.value.length; i++)
	{
		temp = "" + field.value.substring(i, i+1);
		if (valid.indexOf(temp) == "-1") ok = "no";
	}

	if (ok == "no") 
		return false;
	else
		return true;
}
function allowNumber(code)
{
	if( (code>=48 && code<=57) || code==8 || code==37 || code==39 || code==46)
		return true;
	return false;
}
function allowFloat(val,code)
{
	if((code>=48 && code<=57))
		return true;
	if( code==46 )
	{
		if(val.indexOf(".") == -1 )
			return true;
	}
	return false;
}
function checkUncheckAll(v)
{
	frm=document.forms.f; 
	for(i = 0; i < frm.elements.length ; i++)
		if(frm.elements[i].type == 'checkbox')
			if(!frm.elements[i].disabled)
				frm.elements[i].checked = v;
}
function validEmail(email)
{
	if(email == null || email == undefined || email == '') return false;
	if(email.length<6) return false;
	if(email.indexOf('@')<0)
		return false;
	else if(email.indexOf('@', email.indexOf('@')+1)>=0)
		return false;
	if(email.indexOf('.')<0) return false;
	if(email.indexOf('..')>=0) return false;
	if(email.indexOf('.@')>=0) return false;
	if(email.indexOf('@.')>=0) return false;
	if(email.length > 0)
	{
		var charset1 = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_.@";
		for(i = 0; i < email.length; i++)
		{
			ch = email.charAt(i);
			if(charset1.indexOf(ch) < 0)
				return false;
		}
	}
	arr=email.split(".");
	if(arr[1].length<2)
		return false;
		
	return true;
}
function validURL(url)
{
	if(url != null && url != undefined && url.length > 0)
	{
		var charset = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_/:.&";
		for(i = 0; i < url.length; i++)
		{
			ch = url.charAt(i);
			if(charset.indexOf(ch) < 0)
				return false;
		}
	}
	return true;
}
function validID (n)
{
	if(n == null || n == undefined || n == '') return false;
	if(n.length > 0)
	{
		var charset1 = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
		var charset2 = "0123456789-_";
		ch = n.charAt(0);
		if(charset1.indexOf(ch) < 0) return false;
		for(i = 1; i < n.length; i++)
		{
			ch = n.charAt(i);
			if((charset1 + charset2).indexOf(ch) < 0)
				return false;
		}
	}
	return true;
}
function validPassword (n)
{
	if(n == null || n == undefined || n == '') return false;
	if(n.indexOf(" ") >= 0) return false;
	return true;
}
function changeCSS(obj, cssName)
{
	obj.className=cssName;
}
function lite(obj)
{
	if(document.all&&!window.opera)
	{
		obj.filters.blendTrans.apply();
		obj.filters.blendTrans.play();
	}
}
function signOut()
{
	if(confirm('Sure to Sign Out!'))
		window.navigate('SignOut.php');
}
function ImageBrowser(URL, box)
{
	width=660;
	height=400;
	
	var left = (screen.width-width)/2;
	var top = (screen.height-height)/2;
	popUpWin = window.open(URL+'?box='+box, 'ImageBrowser', 'toolbar=no,location=no,directories=no,status=yes,menubar=no,scrollbars=yes,resizable=no,copyhistory=yes,width='+width+',height='+height+',left='+left+', top='+top);
	popUpWin.focus();
}

function ZoomIn(Img, w, h)
{
	width=w+22;
	height=h+5;
	var left = (screen.width-width)/2;
	var top = (screen.height-height)/2;
	popUpWin = window.open('ZoomIn.php?img='+Img, 'ZI', 'toolbar=no,location=no,directories=no,status=yes,menubar=no,scrollbars=yes,resizable=yes,copyhistory=yes,width='+width+',height='+height+',left='+left+', top='+top);
	popUpWin.focus();
}

function checkEmail(frm)
{
	if(!validEmail(frm.newsletter.value))
	{
		alert("Please enter valid e-mail address.");
		frm.newsletter.focus();
		frm.newsletter.select();
		return false;
	}
}
function Book(frm, BookingType)
{
	frm.trip_type.value=BookingType;
	frm.submit();
}
function validatePayment()
{
	frm=document.forms.frmBooking;
	if(frm.payment_method[0])
	{
		if(!frm.payment_method[0].checked && !frm.payment_method[1].checked && !frm.payment_method[2].checked)
		{
			alert("Please select payment method.")
			return false;
		}
	}
	else
	{
		if(!frm.payment_method.checked)
		{
			alert("Please select payment method.")
			return false;
		}
	}
}
var selected;
function selectPayment(object, id)
{
	frm=document.forms.frmBooking;
	if (!selected)
	{
		if (document.getElementById)
			selected = document.getElementById('defaultSelected');
		else
			selected = document.all['defaultSelected'];
	}
	
	if (selected)
		selected.className = 'moduleRow';
		
	object.className = 'moduleRowSelected';
	selected = object;
	
	if(frm.payment_method[0])
		frm.payment_method[id].click();
	else
		frm.payment_method.click();
}
function rowOverEffect(object) {
  if (object.className == 'moduleRow')
  	object.className = 'moduleRowOver';
}

function rowOutEffect(object) {
  if (object.className == 'moduleRowOver')
  	object.className = 'moduleRow';
}
function switchImage(imgName, imgSrc)
{		
	if (document.images)
	{
		if (imgSrc != "none")
		{
			document.images[imgName].src = imgSrc;
		}
	}
}