// JavaScript Document

function request_for_newsletter() {
	
	if(isUserEmail()){
		return true;
	}else{
		return false;
	}
}
function submitForm_contactus() {
	
	if(isFirstName()   && isUserEmail()   && isComment()   ){
		return true;
	}else{
		return false;
	}
}
/* Email */
function isUserEmail() {
	var str = document.register.email.value;
	if (str == "") {
		alert("\nThe Email field is blank,Please enter your valid Email!");
		document.register.email.focus();
		return false;
	}
	if(document.register.email.value!="") {
	 		var str = document.register.email.value;
			var regExp = / /g;
			var tmp = document.register.email.value;
			tmp = tmp.replace(regExp,'');
			if (tmp.length <= 0) {
				alert("Enter valid Email!");
				document.register.email.value="";
				document.register.email.focus();
				return false;
			}	
	}
	if (!isNaN(str)) {
		alert("\nPlease write your correct Email address");
		document.register.email.select();
		document.register.email.focus();
		return false;
	}
	if(str.indexOf('@', 0) == -1) {
		alert("\nIt seems that your email address is not valid!");
		document.register.email.select();
		document.register.email.focus();
		return false;
	}
				
return true;
}
function isFirstName() {
	var checkOK = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz. ";
	var regExp = / /g;
	var str = document.register.fname.value;
	str = str.replace(regExp,'');
	if (str.length <= 0) {
		alert("The  Name field is blank, Please write your  Name!")
		document.register.fname.value = "";
		document.register.fname.focus();
	return false;
	} else {
		var checkStr = document.register.fname.value;
		var allValid = true;
		
		for (i = 0;  i < checkStr.length;  i++) {
			ch = checkStr.charAt(i);
			for (j = 0;  j < checkOK.length;  j++)
				if (ch == checkOK.charAt(j))				
				break;

				if (j == checkOK.length){
					allValid = false;
				break;
				}
		}//for (i = 0;  i < checkStr.length;  i++) {
	
		if (!allValid){
			alert("Invalid First Name.");
			document.register.fname.focus();
			document.register.fname.select();
		return false;
		}//if (!allValid){
	}//if ( str=="" ){			  
return true;
}

function isComment() {
	var str = document.register.comments.value;
	if (str.length <= 0) {
		alert("The Comment field is blank, Please write your Comments!")
		document.register.comments.value = "";
		document.register.comments.focus();
	return false;
	}	  
return true;
}