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() 
{
	if(document.contactform.name.value == "") {
		alert("Please enter your first name.");
		document.contactform.name.select();
		return false;
	}

	else if(document.contactform.email.value == "") {
		alert("Please enter your email address.");
		document.contactform.email.select();
		return false;
	}
	else if((document.contactform.email.value.indexOf('@') < 0) || ((document.contactform.email.value.charAt(document.contactform.email.value.length-4) != '.') && 			(document.contactform.email.value.charAt(document.contactform.email.value.length-3) != '.'))) 
		{alert("You have entered an invalid email address. Please try again.");
		document.contactform.email.select();
		return false;
	}
	else if(document.contactform.subject.value == "") {
		alert("Please enter subject.");
		document.contactform.subject.select();
		return false;
	}	
	else if(document.contactform.msg.value == "") {
		alert("Please enter your message.");
		document.contactform.msg.select();
		return false;
	}
	else
	{

	var msg = document.contactform.msg.value;
	var name = document.contactform.name.value;
	var email = document.contactform.email.value;
	var subject = document.contactform.subject.value;
	document.contactform.send.disabled=true; 
	document.contactform.send.value='Sending....';

    http.open('get', 'contact_sources/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];
         
        }
    }
}