function trim(s)

{

    var l=0; var r=s.length -1;

    while(l < s.length && s[l] == ' ')

    {     l++; }

    while(r > l && s[r] == ' ')

    {     r-=1;     }

    return s.substring(l, r+1);

} 

function valform()



{



	if(trim(document.contactfrm.firstname.value).length==0)



	{



	alert("Please Enter - First Name");



	document.contactfrm.firstname.focus();



	return false;



	}



	if(trim(document.contactfrm.lastname.value).length==0)



	{



	alert("Please Enter - Last Name");



	document.contactfrm.lastname.focus();



	return false;



	}



	if(trim(document.contactfrm.city.value).length==0)



	{



	alert("Please Enter - City");



	document.contactfrm.city.focus();



	return false;



	}



	if(trim(document.contactfrm.email.value).length==0)



	{



	alert("Enter Your Email Address");



	document.contactfrm.email.focus();



	return false;



	}



	if(trim(document.contactfrm.email.value).length > 0)



		{

			if(! isValidEmail(document.contactfrm.email.value)){

			alert("Please enter a valid email address");

			document.contactfrm.email.focus();

       		return false;

		}

	}



	document.contactfrm.submit();



}

function resetform(){

document.contactfrm.reset();



}