var browser_request;

function get_authandication()
{
	var name =document.getElementById('username').value;
	var pass=document.getElementById('password').value;

    URL="user_login_validation.php?name="+name+"&pass="+pass;
	  if(window.XMLHttpRequest)
		{
		  browser_request=new XMLHttpRequest();
		}
	 else if(window.ActiveXObject){
		//For IE 5
		browser_request = new ActiveXObject("Microsoft.XMLHTTP");
		} else if(window.ActiveXObject){
			//For IE 6+
			browser_request = new new ActiveXObject("Msxml2.XMLHTTP");
		}
		else{
		//Error for an old browser
			alert('Your browser is not IE 5 or higher, or Firefox or Safari or Opera');
		}
												//alert(browser_request);
	browser_request.open("GET",URL,true);
	browser_request.onreadystatechange=function()
	{
	   if(browser_request.readyState==4)
		{
	    	if(browser_request.responseText=="valid")
			{
				window.location.href="register.php?action=done";
			}
			else
			{
				alert(browser_request.responseText);
			}
		}
	 }  
	browser_request.send(null);
}