function echeck(str) {

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

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   alert("Invalid E-mail ID");
		   return false;
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    alert("Invalid E-mail ID");
		    return false;
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    alert("Invalid E-mail ID");
		    return false;
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    alert("Invalid E-mail ID");
		    return false;
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    alert("Invalid E-mail ID");
		    return false;
		 }
		
		 if (str.indexOf(" ")!=-1){
		    alert("Invalid E-mail ID");
		    return false;
		 }

 		 return true;					
	}


function submit_form(value) {
               if((value.identity.value == "Existing Advertiser" || value.identity.value == "Existing Publisher") && value.subject.value == "") {
                        alert("Please choose subject!");
                        value.subject.focus();
                        return false;
                }
				else if(value.identity.value == "New Client and want to be Advertiser" && value.newa_subject.value == "") {
                        alert("Please choose subject!");
                        value.newa_subject.focus();
                        return false;
                }
				else if(value.identity.value == "New Client and want to be Publisher" && value.newp_subject.value == "") {
                        alert("Please choose subject!");
                        value.newp_subject.focus();
                        return false;
                }
               else if(value.yourname.value == "") {
                        alert("You must type in a name!");
                        value.yourname.focus();
                        return false;
                }
                else  if ((value.email.value==null)||(value.email.value=="")){
			alert("You must type in valid email!");
			value.email.focus();
			return false;
		}
		else if(echeck(value.email.value)==false){
			value.email.value="";
			value.email.focus();
			return false;
		}
                else if(value.inquiry.value == "") {
                        alert("You must type in a inquiry!");
                        value.inquiry.focus();
                        return false;
                }
                else {
                        return true;
                }
        }

function survey_form(value) {

                if(value.yourname.value == "") {
                        alert("You must type in a name!");
                        value.yourname.focus();
                        return false;
                }
                else  if ((value.email.value==null)||(value.email.value=="")){
			alert("You must type in valid email!");
			value.email.focus();
			return false;
		}
		else if(echeck(value.email.value)==false){
			value.email.value="";
			value.email.focus();
			return false;
		}
                else {
createCookie('yourname',document.survey_contact.yourname.value,1);
createCookie('email',document.survey_contact.email.value,1);
createCookie('phone',document.survey_contact.phone.value,1);
createCookie('website',document.survey_contact.website.value,1);

			$.ajax({
   				type: "POST",
   				url: "files/mailer_survey.php",
   				data: "submit=submit&yourname="+encodeURIComponent(document.survey_contact.yourname.value)+"&email="+encodeURIComponent(document.survey_contact.email.value)+"&phone="+encodeURIComponent(document.survey_contact.phone.value)+"&website="+encodeURIComponent(document.survey_contact.website.value)+"&inquiry="+encodeURIComponent(document.survey_contact.inquiry.value)+"&subject="+encodeURIComponent(document.survey_contact.subject.value),

  				success: function(){
					document.getElementById('survey_form').style.display='none';
					document.getElementById('survey_result').style.display='block';
   				}
 			});
			return true;
                }
        }
function createCookie(yourname,value,hours) {
	if (hours) {
		var date = new Date();
		date.setTime(date.getTime()+(hours*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = yourname+"="+encodeURIComponent(value)+expires+"; path=/";
}

function submit_login(value) {
               if(value.username.value == "") {
                        alert("Please enter user id");
                        value.username.focus();
                        return false;
                }
               else if(value.password.value == "") {
                        alert("please enter password");
                        value.password.focus();
                        return false;
                }
                else {
                        return true;
                }
        }