//javascript validation
//<script language="javascript" src="validation.js"></script>
function isalphanum_len(str,min,max){
	var sreg="^\\w{" + min +  "," + max + "}$";
	var regEx = new RegExp(sreg); 
	return regEx.test(str);
}
function isalphanum(str){
	var sreg="^\\w$";
	var regEx = new RegExp(sreg); 
	return regEx.test(str);
}
function isalpha(str,min,max){
	var sreg="^\[A-Za-z\]{" + min +  "," + max + "}$";
	var regEx = new RegExp(sreg); 
	return regEx.test(str);
}
function isalpha_len(str){
	var sreg="^\[A-Za-z\]{" + min +  "," + max + "}$";
	var regEx = new RegExp(sreg); 
	return regEx.test(str);
}
function isnumber_len(str,min,max){
	var sreg="^\\d{" + min +  "," + max + "}$";
	var regEx = new RegExp(sreg);  
	return regEx.test(str);
}
function isnumber(str){
	var sreg="^\\d$";
	var regEx = new RegExp(sreg);  
	return regEx.test(str);
}

function isphonefax(str){
	//12345678
	//031234567
	//0312345678
	//0191234567
	//0031234567
	//00312345678
	//019-1234567
	//003-12345678
	//03-1234567
	//03-12345678
	var sreg="^(\\d{8,11}\|\\d{3}-\\d{7,8}|\\d{2}-\\d{7,8})$";
	var regEx = new RegExp(sreg);  
	return regEx.test(str);
}


function isemail(str){
	var regEx = /^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/ ;
	return regEx.test(str);
}