function validate(frm)
{
	var name1 = frm.sName;
	var name2=frm.name1;
	var email = frm.sEmail;
	var email2=frm.email1;
	var err_flag = 0;
 
	if (name1.value == "" || !removeSpaces(name1.value))
	{
		alert ("Please enter proper Name!");
		name1.focus();
		return false; 
		name1.value="";
	}
	else if (email.value == "" || !validate_email(email.value))
	{
		alert ("Please enter proper Email!");
		email.focus();
		return false; 
  	}
	if (name2.value == "" || !removeSpaces(name2.value))
	{
		alert ("Please enter proper Friend's Name.!");
		name2.focus();
		return false; 
		name2.value="";
	}
	else if (email2.value == "" || !validate_email(email2.value))
	{
		alert ("Please enter proper Friend'sEmail.!");
		email.focus();
		return false; 
	}
}
function validate_email(e)
{
	var str=e;
	var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;
	
	if (!filter.test(str))
		return false;
	else
  		return true;
}
function removeSpaces(string) {
	var tstring = "";
	string = '' + string;
	splitstring = string.split(" ");
	for(i = 0; i < splitstring.length; i++)
		tstring += splitstring[i];
 	return tstring;
}