// Validate email input string
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})(\\]?)$");
	var r3 = new RegExp("\\w+([-+.]\\w+)*@\\w+([-.]\\w+)*\\.\\w+([-.]\\w+)*")
	//return (!r1.test(str) && r2.test(str));
	return (r3.test(str));
}

function trim(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; 

	var x=str;
	try {
		x=x.replace(/^\s*(.*)/, "$1");
		x=x.replace(/(.*)\s*$/, "$1");
		x=x.replace(/(.*?)\s*$/, "$1");
	}
	catch (ex) {
		return x;
	}
	return x;
}

// Matching character in regExpStr are removed from str
// Ex.:
// document.forms.frmLogin.UserName.value = NormalizeString(document.forms.frmLogin.UserName.value,"[^\\d\\wåäöÅÄÖ]+")
function NormalizeString(str,regExpStr) {
	// 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 ""; // this function is intended to be used of sequrity reson. If RegExp is not supportet then return empty string.
	var r1 = new RegExp(regExpStr,"g");
	return str.replace(r1,"");
}

// Validate Username input string
function isUserName(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.length > 1);
	var r1 = new RegExp("^[a-zA-Z0-9åäöÅÄÖ\\_\\@\\.\\-]+$");
	return ((str.length>1) && r1.test(str));
}

function ASPXCustomValidateEmail(email,e) {
	if (isEmail(email.value)) {
		return true;
	}
	else {
		return false;
	}
}