function getCourse(sel)
{
	var itemCode = sel.options[sel.selectedIndex].value;
	 var url1= "1.php?item="+itemCode;
	 var objj =ajaxFunction(url1);
}

function ajaxFunction(url1){
	var ajaxRequest;  // The variable that makes Ajax possible!
	
	try{
		ajaxRequest = new XMLHttpRequest();
	} catch (e){
		try{
			ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try{
				ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e){
				alert("Your browser broke!");
				return false;
			}
		}
	}
	ajaxRequest.onreadystatechange = function(){
		if(ajaxRequest.readyState == 4){
			 var ajaxDisplay = document.getElementById('ajaxDiv');
			ajaxDisplay.innerHTML = ajaxRequest.responseText;

		}
	}
	ajaxRequest.open("GET", url1, true);
	ajaxRequest.send(null); 
}