function checkformblank()
{
	var i;
	i = document.leftform;
	
	if(i.Email.value.length == 0)
	{
		alert("Please Enter Email Address.");
		i.Email.focus();
		return false;
	}
	if(!check_email(i.Email))
				{
					i.Email.focus()
					return false;
					
				}

	if(i.Phone.value.length == 0)
	{
		alert("Please Enter Phone Number.");
		i.Phone.focus();
		return false;
	}
	return true;
	
}
function checkmiddleform()
{
	var i;
	i = document.middleform;
	
	if(i.Email.value.length == 0)
	{
		alert("Please Enter Email Address.");
		i.Email.focus();
		return false;
	}
	if(!check_email(i.Email))
				{
					i.Email.focus()
					return false;
					
				}

	if(i.Phone.value.length == 0)
	{
		alert("Please Enter Phone Number.");
		i.Phone.focus();
		return false;
	}
	return true;
	
}
function check_email(thisField)
{
	
	if (thisField.value.indexOf('@') == -1 ) 
	{
		alert('Please enter valid e-mail ID');
		thisField.focus();
		thisField.select();
		flag=false;
	}	
	else if(thisField.value.substring(thisField.value.indexOf('@')+2).indexOf('@') >= 0||
		thisField.value.substring(thisField.value.indexOf('@')+2).indexOf('.') < 0 ) 
	{
			alert('Please enter valid e-mail ID');
			thisField.focus();
			thisField.select();			
			flag=false;
	}
	else if(thisField.value.charAt(thisField.value.length - 1) == '.') 
	{
			alert('Please enter valid e-mail ID');
			thisField.focus();
			thisField.select();			
			flag=false;
	}
	else
		flag=true;
		return flag
}