// JavaScript Document
function validateSendInvite(){
	
	df=document.emailForm;
	
	if(df.yourName.value==""){
		alert("Please provide Your Name");
		df.yourName.focus();
		return false;
	}

	if(df.friendName.value==""){
		alert("Please provide Your Friends Name");
		df.friendName.focus();
		return false;
	}

	if(df.yourEmail.value=="" || !isEmail(df.yourEmail.value)){
		alert("Please provide a valid Email");
		df.yourEmail.focus();
		return false;
	}
	
	if(df.friendEmail.value=="" || !isEmail(df.friendEmail.value)){
		alert("Please provide a valid Email");
		df.friendEmail.focus();
		return false;
	}
	
	if(df.msg.value==""){
		alert("Please provide a Brief Message");
		df.msg.focus();
		return false;
	}
	
	return true;
	
}

function isEmail(str) {
	  // are regular expressions supported?
	  var supported = 0;
	  if (window.RegExp) {
	    var tempStr = "a";
	    var tempReg = new RegExp(tempStr);
	    if (tempReg.test(tempStr)) supported = 1;
	  }
	  if (!supported)
	    return (str.indexOf(".") > 2) && (str.indexOf("@") > 0);
		  var r1 = new RegExp("(@.*@)|(\\.\\.)|(@\\.)|(^\\.)");
	  var r2 = new RegExp("^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$");
	  return (!r1.test(str) && r2.test(str));
}