// JavaScript Document
function validate_form ()
{
	  var info = $('info');

		var emailID=$('email');
                if ((emailID.value==null)||(emailID.value=="")){
                info.innerHTML = "Please Enter your Email ID";
                emailID.focus()
                return false;
                }
				
		if (!echeck()){
				//alert("archana");
				info.innerHTML = "Invalid email id";
				emailID.value="";
				emailID.focus();
				return false;
        }
		
        valid = true;
		
        if ( $('contactus_message').value == "" )
        {
                info.innerHTML =  "Please write in some message.";
                $('contactus_message').focus();
                return false;
        }

        if ( $('contactus_fname').value == "" )
        {

                info.innerHTML = "Please fill your first name.";
                $('contactus_fname').focus();
                return false;
        }
        if ( $('contactus_lname').value == "" )
        {

                info.innerHTML = "Please fill your last name.";
                $('contactus_lname').focus();
                return false;
        }
        
        return true;
}

function echeck() {

var str = document.getElementById('email').value;


                var at="@";
                var dot=".";
                var lat=str.indexOf(at);
                var lstr=str.length;
                var ldot=str.indexOf(dot);
                if (str.indexOf(at)==-1){
                   return false;
                }

                if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
                   return false;
                }

                if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
                    return false;
                }

                 if (str.indexOf(at,(lat+1))!=-1){
                    return false;
                 }

                 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
                    return false;
                 }

                 if (str.indexOf(dot,(lat+2))==-1){
                    return false;
                 }

                 if (str.indexOf(" ")!=-1){
                    return false;
                 }

                 return true;
        }