function emailcheck(str)
	{
	var at = "@"
	var dot = "."
	var lat = str.indexOf(at)
	var lstr = str.length
	var ldot = str.indexOf(dot)
		if(str.indexOf(at) == -1)
		{
		alert("Invalid Email ID")
		return false
		}
		
		if (str.indexOf(at) == -1 || str.indexOf(at) ==0 || str.indexOf(at) == lstr)
		{
		alert("Invalid Email ID")
		return false
		}
		
		if (str.indexOf(dot) == -1 ||str.indexOf(dot) == 0 || str.indexOf(dot) == lstr)
		{
		alert("Invalid Email ID")
		return false
		}
		
		if (str.indexOf(at, (lat+1))!=-1)
		{
		alert("Invalid Email ID")
		return false
		}
		
		if (str.substring(lat-1,lat) == dot || str.substring(lat=1,lat=2) == dot)
		{
		alert("Invalid Email ID")
		return false
		}
		
		if (str.indexOf(dot,(lat+2)) == -1)
		{
		alert("Invalid Email ID")
		return false
		}
		
		if (str.indexOf(" ")!=-1)
		{
		alert("Invalid Email ID")
		return false
		}
		return true
	}



function checkform()
{
	if(document.getElementById('firstName').value=="")
		{
		alert("Please enter your first name"); 
		document.getElementById('firstName').focus();
		return false;
		}
	
	if(document.getElementById('lastName').value=="")
		{
		alert("Please enter your last name");
		document.getElementById('lastName').focus();
		return false;
		}
	
	if(document.getElementById('streetAddress').value=="")
		{
		alert("Please enter your street address");
		document.getElementById('streetAddress').focus();
		return false;
		}
	
	if(document.getElementById('city').value=="")
		{
		alert("Please enter your city");
		document.getElementByID('city').focus();
		return false;
		}
	
	
	if(document.getElementById('state').value=="")
			{
			alert("Please enter your state");
			document.getElementById('state').focus();
			return false;
			}
	
	if(document.getElementById('zipCode').value=="")
			{
			alert("Please enter your city"); 
			document.getElementById('zipCode').focus();
			return false;
			}
	
	if(document.getElementById('phone').value=="")
			{
			alert("Please enter your phone number"); 
			document.getElementById('phone').focus();
			return false;
			}
	
	var emailID=document.getElementById('email');
		
		if((emailID.value == null) || (emailID.value == false))
			{
			alert("please enter your email")
			emailID.focus()
			return false
			}
		if (emailcheck(emailID.value) == false)
			{
			emailID.value = ""
			emailID.focus()
			return false
			}
			
		alert ("Your information has been sent. Thank you.")
		return true;
	
}












////////////////////////////////////////////////////////////////////////////////////////////

/*<!--function validate_email(field,alerttxt)
{
with (field)
{
apos=value.indexOf("@");
dotpos=value.lastIndexOf(".");
if (apos<1||dotpos-apos<2) 
  {alert(alerttxt); return false;}
else {return true;}
}
}function validate_form(thisform)
{
with (thisform)
{
if (validate_email(email,"Not a valid e-mail address!")==false)
  {email.focus();return false;}
}*/