function validateFields(frm) { 
                var bSubmit = true;                 
                var reEmail = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;        // regular expression for a valid email address 
                if (frm.Email.value == '' || !reEmail.test(frm.Email.value)) { 
                        alert("Please enter a valid e-mail address."); 
                        frm.Email.focus(); 
                        bSubmit = false; 
                } else if (!isPhoneNumber(frm.Phone.value)) 
                 { 
                        //alert("Please enter your Phone #."); 
                        frm.Phone.focus(); 
                        bSubmit = false; 
                } 
                return bSubmit; 
        } 
           function validateFieldEmail(frm) { 
                var bSubmit = true;                 
                var reEmail = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;        // regular expression for a valid email address 
                if (frm.Email.value == '' || !reEmail.test(frm.Email.value)) { 
                        alert("Please enter a valid e-mail address."); 
                        frm.Email.focus(); 
                        bSubmit = false; 
                }  
                return bSubmit; 
        } 
        
var defaultEmptyOK = false 
function isEmpty(s) 
{   
    return ((s == null) || (s.length == 0)) 
} 
        
function isPhoneNumber (phoneNum) 
{   
    if (isEmpty(phoneNum)) 
    { 
        alert("Please enter your Phone #."); 
        return defaultEmptyOK; 
    } 
    var regex= /^\d{3}[\s\.-]?\d{3}[\s\.-]?\d{4}$/ 
    if(!regex.test(phoneNum)) 
    { 
        alert(phoneNum + " is not a valid phone no."); 
        return defaultEmptyOK; 
    } 
    
    if(phoneNum.charAt(0)==phoneNum.charAt(1) && phoneNum.charAt(1)==phoneNum.charAt(2)) 
    { 
        alert(phoneNum + " is not a valid phone no."); 
        return defaultEmptyOK; 
    } 
       if((eval(phoneNum.charAt(0))+2)==(eval(phoneNum.charAt(1))+1) && (eval(phoneNum.charAt(1))+1)==eval(phoneNum.charAt(2))) 
    { 
        alert(phoneNum + " is not a valid phone no."); 
        return defaultEmptyOK; 
    } 
    return true; 
}