function validate()
{
    var reg = /[^a-z A-Z 0-9\(\)\[\]\{\}\.\,\:\'\;\&]/;
    var numericExpression = /[^0-9\(\)\[\]\{\}\.\,\:\'\;\&]/;
    var num = /[^1-4\&]/;
   
   var phoneExpression =/^[0-9]{2,3}-? ?[0-9]{0,10}$/;
   // ^[0-9]{2,3}-? ?[0-9]{6,7}$
    var iChars = /<>!`~#$%^&*()_-+=|\\{[}]:;\"'<,>?/;
    var EmailExpression =/^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;
    var namepatern=/^[a-zA-Z''-'\s]{1,100}$/;
    
    var varcheckNum=/^[0-9]+$/;

     if(trim(__g(txtSubject).value)=="")
    {
        alert ("Please enter subject.");
        __g(txtSubject).focus();        
        return false;
    } 
     
     if(trim(__g(txtName).value)=="")
    {
        alert ("Please enter name.");
        __g(txtName).focus();        
        return false;
    } 
     var Fname=__g(txtName).value;
     var matchFName = Fname.match(namepatern);
        if (matchFName == null)
        {
               alert("Your name is not valid.");
               __g(txtName).focus();
               return false;
        }
    
    if(trim(__g(txtPhone).value)=="")
    {
        alert ("Please enter telephone number.");
        document.getElementById(strTele).focus();        
        return false;
    } 
     //var emailPat = /^(\".*\"|[A-Za-z]\w*)@(\[\d{1,3}(\.\d{1,3}){3}]|[A-Za-z]\w*(\.[A-Za-z]\w*)+)$/;
     var telephoneNo=__g(txtPhone).value;
     var matchTel = telephoneNo.match(phoneExpression);
     if (matchTel == null)
    {
               alert("Your phone is not correct. Please try again.");
               __g(txtPhone).focus();
               return false;
    }
    
    if(trim(__g(txtEmail).value)=="")
    {
        alert ("Please enter Email Id.");
        __g(txtEmail).focus();        
        return false;
    }
    
     //var emailPat = /^(\".*\"|[A-Za-z]\w*)@(\[\d{1,3}(\.\d{1,3}){3}]|[A-Za-z]\w*(\.[A-Za-z]\w*)+)$/;
var emailPat = /^[a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}$/;
     var emailid=__g(txtEmail).value;
     var matchArray = emailid.match(emailPat);
     if (matchArray == null)
    {
               alert("Your email address seems incorrect. Please try again.");
               __g(txtEmail).focus();
               return false;
    }
   
return true;


}

function trim(str)
{
    return str.replace(/^\s+|\s+$/g, '');
}