var phone = "()- 0123456789";
var numb = "0123456789";
var alpha = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ @-'.,";
var alphanumb = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ @-.'1234567890";
var emailval="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ@-_.1234567890";
var site ="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-1.234567890";
function res(t,v){
var w = "";
for (i=0; i < t.value.length; i++) {
x = t.value.charAt(i);
if (v.indexOf(x,0) != -1)
 w += x; 
}
t.value = w;
}

function isEmpty(fieldName,errMessage) {
	var div = document.getElementById(errMessage);
    var f_name = document.getElementById(fieldName);
	if (f_name.value.length == 0) {
        f_name.style.background = 'Moccasin'; 
		div.style.display = "block";
		f_name.style.border = "2px solid #bdb737"
	} else {
        f_name.style.background = 'White';
		div.style.display = "none";
		f_name.style.border = "1px solid #999999"
    }
    return f_name; 
}