// JavaScript Document
function check_alphanumarics(){
	var check,char_error = true;
	var str = document.getElementById('username').value;
	var pass = document.getElementById('password').value;
	var email = document.getElementById('email').value;
	var strreduse = '';
	var inchr = '';
	
	var alpha = new Array(' ','!','@','#','$','%','^','&','*','(',')','-','=','_','~','`','{','}','[',']','"',';',':','\'',',','.','/','?','>','<','|');
	for(i = 0 ; i < alpha.length; i ++){
		if(str.indexOf(alpha[i]) != -1){
			check = false;
			char_error = false;
			inchr = inchr + " \" "+alpha[i]+ " \"\n";
		}
	}
	
	if(str == ''){
		check = false;
		strreduse =  strreduse +"Please enter your Username\n";
	}

	if(pass == ''){
		check = false;
		strreduse = strreduse + "Please enter your password\n";
	}
	

	
	if(char_error == false){
		strreduse = "You can not add following Characters for username \r\n" + inchr + strreduse;
		}
		
	var msg = "Please Correct the followings. \r\n\n"+ strreduse;
	if(check == false){
		alert(msg);
		return false;
	} else {
		return true;
	}
}