function formValidator(){ 
	// Make quick references to our fields 
        var username = document.forms[0].text_Us_name; 
	var addr = document.forms[0].text_pas; 
	var email = document.forms[0].text_em; 
	 
	// Check each input in the order that it appears in the form! 
	         if(lengthRestriction(username, 6, 12)){ 
		if(isAlphanumeric(addr, "الرقم السري ارقام وحروف")){ 
                 if(lengthaddr(addr, 4, 15)){ 
		if(emailValidator(email, "الايميل غير صحيح")){ 
							document.forms[0].submit(); 
						} 
					} 
				} 
			} 
		 
	 
	 
	 
	return false; 
	 
} 
 
function notEmpty(elem, helperMsg){ 
	if(elem.value.length == 0){ 
		alert(helperMsg); 
		elem.focus(); // set the focus to this input 
		return false; 
	} 
	return true; 
} 
 
 
function isAlphanumeric(elem, helperMsg){ 
	var alphaExp = /^[0-9a-zA-Z]+$/; 
	if(elem.value.match(alphaExp)){ 
		return true; 
	}else{ 
		alert(helperMsg); 
		elem.focus(); 
		return false; 
	} 
} 
 
function lengthRestriction(elem, min, max){ 
	var uInput = elem.value; 
	if(uInput.length >= min && uInput.length <= max){ 
		return true; 
	}else{ 
		alert("ادخل اسم المستخدم مابين " +min+ " الى " +max+ " حروف وارقام"); 
		elem.focus(); 
		return false; 
	} 
} 
 
function lengthaddr(elem, min, max){ 
	var uInput = elem.value; 
	if(uInput.length >= min && uInput.length <= max){ 
		return true; 
	}else{ 
		alert("ادخل الرقم السري مابين " +min+ " الى " +max+ " حروف وارقام"); 
		elem.focus(); 
		return false; 
	} 
} 
function emailValidator(elem, helperMsg){ 
	var emailExp = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/; 
	if(elem.value.match(emailExp)){ 
		return true; 
	}else{ 
		alert(helperMsg); 
		elem.focus(); 
		return false; 
	} 
        
} 
  function numbersonly(e){
var unicode=e.charCode? e.charCode : e.keyCode
if (unicode!=8){ 
if   ((unicode >= 48 && unicode <= 57) || // 0-9
            (unicode >= 65 && unicode <= 90) || // A-Z
            (unicode >= 97 && unicode <= 122))  // a-z
                return true;
             else
            alert("الحقل لايقبل الكتابة بالعربي")
            return false;}
}