function chklogin()
			{
				var doc=document.userlogin;
				if(doc.username.value=="")
				{
					alert("Please enter your email id")
					doc.username.focus();
					return false;
				}
				if(!emailValidation(doc.username.value)) {
					alert("Please enter valid email id")
					doc.username.focus();
					return false;
				}
				if(doc.password.value=="")
				{
					alert("Please enter your Password")
					doc.password.focus();
					return false;
				}

				getLogin(doc.username.value,doc.password.value);
				return false;
			}
			
			var isWorking = false;

	//	**************************** IMAGE DELETE **********************************
			
			function delete_image(id,image){
				//delImage(id,image);
				return false;
			}

			function handleDelete() {		
				alert(http.readyState);
				if (http.readyState == 4) {
					if (http.responseText.indexOf('invalid') == -1) {				 
						// results = logo,0
						results = http.responseText.split(",");
						alert(results[0]);
						var_div = 'div_'.results[0];
						if(results[1]==1) document.getElementById(var_div).innerHTML = "<span class='caution'>Image deleted!</span>";
						else alert('Oops! System Problem. Try again!');
						document.getElementById('div_loading').innerHTML = "";
						isWorking = false;
					}
				}
			}


			function delImage(id,image) {

				if (!isWorking && http) {

					//alert('Username: '+ username + ' / Password: '+ password);
					var url;
					url = 'delete_image.php?id='+id+'&image='+image;
					alert(url);					
					http.open("GET", url, true);
					http.onreadystatechange = handleDelete;
					isWorking = true;
					//document.getElementById('div_loading').innerHTML = "<span class='wait'>?Wait...</span>";
					http.send(null);

				}

			}



	//	**************************** LOGIN **********************************

			function handleLogin() {				
				if (http.readyState == 4) {
					if (http.responseText.indexOf('invalid') == -1) {				 
						results = http.responseText;
						//alert(results);
						document.getElementById('div_login').innerHTML = results;
						document.getElementById('div_loading').innerHTML = "";
						isWorking = false;
					}
				}
			}


			function getLogin(username,password) {

				if (!isWorking && http) {

					//alert('Username: '+ username + ' / Password: '+ password);
					var url;
					url = 'login.php?username='+username+'&password='+password+'&action=login';
					//alert(url);					
					http.open("GET", url, true);
					http.onreadystatechange = handleLogin;
					isWorking = true;
					document.getElementById('div_loading').innerHTML = "<span class='wait'>Logging in...</span>";
					http.send(null);

				}

			}

	//	**************************** HTTP ***********************************

			function getHTTPObject() {

				var xmlhttp;
				/*@cc_on
				@if (@_jscript_version >= 5)
					try {
						xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
					} catch (e) {
						try {
							xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
						} catch (E) {
							xmlhttp = false;
						}
					}
				@else
					xmlhttp = false;
				@end @*/

				if (!xmlhttp && typeof XMLHttpRequest != 'undefined') {
					try {
						xmlhttp = new XMLHttpRequest();
					} catch (e) {
						xmlhttp = false;
					}
				}

				return xmlhttp;

			}

			if(!http) var http = getHTTPObject(); // We create the HTTP Object


//function for email validation
function emailValidation(value) {
	var str = value;
	var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i
	if (filter.test(str)) {
		return true;
	}
	else {
		return false;
	}
}