// JavaScript Document
function ajaxtopic(level){
	var ajaxRequest;  // The variable that makes Ajax possible!
	
	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){
			var ajaxDisplay = ajaxRequest.responseText;	
			var firstvalue = ajaxDisplay.indexOf(",");			
			FirstValue = ajaxDisplay.substring(0,firstvalue);
			var secondvalue = ajaxDisplay.substring(firstvalue+1,ajaxDisplay.length);
			document.form1.price.value = secondvalue;
			//document.getElementById('product').value = FirstValue;
			document.getElementById('amount').value = secondvalue;
		}
	}
    var school_level = '';
    if(level == ""){
     school_level = document.getElementById('school_level').value;	
    }else{
    school_level = level;
    }
	var queryString = "?school_level=" + school_level ;
	ajaxRequest.open("GET", "show_level.php" + queryString, true);
	ajaxRequest.send(null); 
}