// JavaScript Document


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 createRequestObject() {
    var ro;
    var browser = navigator.appName;
    if(browser == "Microsoft Internet Explorer"){
        ro = new ActiveXObject("Microsoft.XMLHTTP");
    }else{
        ro = new XMLHttpRequest();
    }
    return ro;
}

var http = createRequestObject();

function sendemail() {
	var msg = document.contactform.msg.value;
	var name = document.contactform.name.value;
	var email = document.contactform.email.value;
	var subject = document.contactform.subject.value;
	
	if(name == '' )
	{
		alert("pleae enter your name");
		document.contactform.name.focus();
		return false;
	}
	
	if(document.contactform.email.value=="")
	{
		alert("Please enter your Email Id");
		document.contactform.email.focus();
		return false;
	}
	if (echeck(document.contactform.email.value)==false)
	{
		document.contactform.email.value=""
		document.contactform.email.focus()
		return false
	}
	
	document.contactform.send.disabled=true; 
	document.contactform.send.value='Sending....';

    http.open('get', 'contact.php?msg='+msg+'&name='+name+'&subject='+subject+'&email='+email+'&action=send');
    http.onreadystatechange = handleResponse;
    http.send(null);
}

function handleResponse() {
    if(http.readyState == 4){
        var response = http.responseText;
        var update = new Array();

        if(response.indexOf('|' != -1)) {
            update = response.split('|');
            document.getElementById(update[0]).innerHTML = update[1];
         
        }
    }
}