// JavaScript Document
function isValidData(val,valid,minl,maxl,fieldname,msg)
{
	if(Trim(val,' ')=="")
	{
		alert(fieldname + " is empty.");
		return false;
	}
	else if(val.length<minl || val.length>maxl)
	{
		alert(fieldname + " must be " + minl + " to " + maxl + " chars long")
		return false;
	}
	else
	{
		for (var i=0, len=val.length; i<len ; i++) 
		{
			if (valid.indexOf(val.substring(i,i+1)) == -1) 
			{
				var wrong = i*1+1;
				alert(msg + ' ' + fieldname + '. Check character no ' + wrong + '.');
				return false;
			}
		}
	}
	return true;
}

function isEmail(val)
{
	if(Trim(val,' ') == "")
	{
		alert("You must enter an Email Address");
		return false;
	}
	else if (!(val.indexOf('\@') > -1))
	{
		alert("Email must contain a \@");
		return false;
	}
	else if (!(val.indexOf('.') > -1))
	{
		alert("Email must contain a '.' (dot)");
		return false;
	}
	else if (val.indexOf('\@') == (val.indexOf('.')-1))
	{
		alert("Email can't contain a \@ and '.' side by side");
		return false;
	}
	else if (val.indexOf('.') == (val.length-1))
	{
		alert("Email can't contain a '.' (dot) at the end");
		return false;
	}
	return true;
}

function Trim(inputString, removeChar) 
{
	var returnString = inputString;
	if (removeChar.length)
	{
	  while(''+returnString.charAt(0)==removeChar)
		{
		  returnString=returnString.substring(1,returnString.length);
		}
		while(''+returnString.charAt(returnString.length-1)==removeChar)
	  {
	    returnString=returnString.substring(0,returnString.length-1);
	  }
	}
	return returnString;
}



function contact(frm){
	
	if(Trim(frm.firstname.value,' ')==""){
		alert("Please enter firstname.");
		frm.firstname.focus();
		return false;
	}
	
	else if(Trim(frm.lastname.value,' ')==""){
		alert("Please enter lastname.");
		frm.lastname.focus();
		return false;
	}
	
	else if(!isEmail(frm.email.value)){
		frm.email.focus();
		return false;
	}
	
	else if(Trim(frm.address.value,' ')==""){
		alert("Please enter address.");
		frm.address.focus();
		return false;
	}
	
	else if(Trim(frm.city.value,' ')==""){
		alert("Please enter city.");
		frm.city.focus();
		return false;
	}
	
	else if(Trim(frm.country.value,' ')==""){
		alert("Please select country.");
		frm.country.focus();
		return false;
	}
	
	else if(Trim(frm.messages.value,' ')==""){
		alert("Please enter messages.");
		frm.messages.focus();
		return false;
	}
	

	
	
	return true;
}