var xmlHttp
	function showHint1(str){
		xmlHttp=GetXmlHttpObject1();
		if (xmlHttp==null){
			alert ("Your browser does not support AJAX!");
			return;
	  	} 
		var url="ajax_php1.php";
		url=url+"?q="+str;
		url=url+"&sid="+Math.random();
		xmlHttp.onreadystatechange=stateChanged1;
		xmlHttp.open("GET",url,true);
		xmlHttp.send(null);
	}
	function stateChanged1(){
		if (xmlHttp.readyState==4){
			document.getElementById("txtHint1").innerHTML=xmlHttp.responseText;
		}
	}
	function GetXmlHttpObject1(){
		var xmlHttp=null;
		try{
			// Firefox, Opera 8.0+, Safari
	  		xmlHttp=new XMLHttpRequest();
	  	}
		catch (e){
			// Internet Explorer
	  		try{
		  		xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
	    	}
	  	catch (e){
		  	xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
	    }
	  }
	return xmlHttp;
	}