function validate() {

if (document.mform.fname.value == "") { 
 alert ("Please enter your name."); 
 document.mform.fname.focus(); 
 return false; 
} 

var string = document.mform.femail.value;
if (!string) { 
alert ("Meesage is missing !"); 
return false;
}
var iChars = "*|\":<>[]{}\;()#";
for (var i = 0; i < string.length; i++) {
if (iChars.indexOf(string.charAt(i)) != -1){
alert ("'Message' contains illegal characters such as : or /!"); 
document.mform.femail.focus(); 
return false;
}
}

return true;

}