var xmlHttp

serialize = function( oForm )
{	
	var aPairs = new Array();
	
	for(var i=0;i<oForm.elements.length;i++)
	{
				
		if( typeof( oForm.elements[i].name ) == "undefined" || !oForm.elements[i].name || oForm.elements[i].name == "" )
			continue;
			
		switch( oForm.elements[i].tagName.toLowerCase() )
		{
			case "input":
				{
					switch( oForm.elements[i].type.toLowerCase() )
					{
						case "radio":
							if( oForm.elements[i].checked  )
								aPairs.push( encodeURIComponent( oForm.elements[i].name ) + '=' + encodeURIComponent( oForm.elements[i].value ) );
							break;
						case "checkbox":
							aPairs.push( encodeURIComponent( oForm.elements[i].name ) + '=' + ( oForm.elements[i].checked ? 1 : 0 ));
							break;
						default:
							aPairs.push( encodeURIComponent( oForm.elements[i].name ) + '=' + encodeURIComponent( oForm.elements[i].value ) );
							break;
					}
				}
				break;
			case "select":
				if( oForm.elements[i].getAttribute("multiple") != null )
				{
					for(var k=0;k<oForm.elements[i].options.length;k++)
					{
						if( oForm.elements[i].options[k].selected )
						{
							aPairs.push( encodeURIComponent( oForm.elements[i].name ) + '=' + encodeURIComponent( oForm.elements[i].options[k].value ) );
						}
					}
				}
				else
				{
					aPairs.push( encodeURIComponent( oForm.elements[i].name ) + '=' + encodeURIComponent( oForm.elements[i].value ) );
				}
				break;
			case "textarea":
				aPairs.push( encodeURIComponent( oForm.elements[i].name ) + '=' + encodeURIComponent( oForm.elements[i].value ) );
				break;
				
		}
	}
	
	return aPairs.join('&');
}


function ajax(page)
{
	var ajaxRequest;  // The variable that makes Ajax possible!
	var form     = document.forms['form1'];
	
	try{
		// Opera 8.0+, Firefox, Safari
		ajaxRequest = new XMLHttpRequest();
	} catch (e){
		// Internet Explorer Browsers
		try{
			ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try{
				ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e){
				// Something went wrong
				alert("Your browser broke!");
				return false;
			}
		}
	}
	// Create a function that will receive data sent from the server
	ajaxRequest.onreadystatechange = function(){
		if(ajaxRequest.readyState == 4){
//			document.myForm.time.value = ajaxRequest.responseText;
			result = ajaxRequest.responseText;
			document.getElementById('myspan').innerHTML = result;  
//			alert(ajaxRequest.responseText);
		}
	}
	
	var url		= "ajax_"+page+".php";
	var param	=  serialize(form);
	
	url = url+"?"+param;
	
	ajaxRequest.open("GET", url, true);
	ajaxRequest.send(null); 

}