function replace_image (location) {
	if (document.getElementById) {
		document.getElementById('placeholder').src = location;
	}
	return false;
}
		
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 isValidEmail(strEmail){
	validRegExp = /^[^@]+@[^@]+.[a-z]{2,}$/i;
	strEmail = document.forms[0].email.value;

	if (strEmail.search(validRegExp) == -1) {
		return false;
	}			
	return true; 
}

function sendemail() {
	if (isValidEmail(document.contactform.email.value)) {
		var msg = document.contactform.email.value;
		var name = "Abandon Email Form";
		var email = document.contactform.email.value;
		var subject = "Abandon Email Form";
		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);
	}
	
	else {
		document.contactform.email.value='Invalid email...';
	}
}

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];
		 
		}
	}
}

function popitup(url, _height, _width) {
	newwindow=window.open(url,'name','height=' + _height + ',width=' + _width + ',scrollbars=yes');
	if (window.focus) {newwindow.focus()}
	return false;
}