Pass many variables to ajax

[ghjk]

I want to pass 2 variables in my php page to ajax page in onchange function. Actually this drop down box use in many pages. So I want to pass the page name to ajax page with the user selected value. How can I do that? Please help me..
This is my code.

?>
				
<select name="Make"  class="normalTxt" onChange='getMakeIndexPage(this.value); return false; ' id="Make" >
<option value="Select">Select</option>
<?php  $mysql_result1 = mysql_query("SELECT DISTINCT vehicleMake FROM  vehicles");
						while($row = mysql_fetch_array($mysql_result1)){
foreach( $row AS $key => $val )
	$Make = stripslashes( $val );
	?>
	<option value=<?php  echo  "'$Make'" ?> ><?php echo "$Make&nbsp;&nbsp;&nbsp;&nbsp&nbsp&nbsp"?>
				<?php 
	}	
				?>
</option>
</select>

ajax page

function getMakeIndexPage(){
	
	var dropdownIndex = document.getElementById('Make').selectedIndex;
	var make = document.getElementById('Make')[dropdownIndex].value;
	var request = GetXmlHttpObject();
	var url="commonFunction.php";
	url=url+"?make="+make+"&S=" +1;
	//alert (url);
	url=url+"&sid="+Math.random();
	request.onreadystatechange=stateChanged;
	request.open("GET",url,true);
	request.send(null);
	function stateChanged()
   {
	 if (request.readyState==4)  
		{
			
			document.getElementById("getMake").innerHTML=request.responseText;
		
		}
 	}
	
}

[Dormilich]

where do you get the page name from?

additional notes:
compare

<select name="Make" class="normalTxt" onChange='getMakeIndexPage(this.value); return false;' id="Make">

to

function getMakeIndexPage(){
 
    var dropdownIndex = document.getElementById('Make').selectedIndex;
    var make = document.getElementById('Make')[dropdownIndex].value;
    // …

wouldn’t it be easier to use

function getMakeIndexPage(make){
    // …

instead?

[ghjk]

I put the page name inside the onchange function. But It doesn't work.

<select name="Make"  class="normalTxt" onChange='getMakeIndexPage(this.value,index); return false; ' id="Make">

and the ajax page

function getMakeIndexPage(test){
	alert(test);
...
}

[Dormilich]

obviously, the first parameter is the dropdown’s value and the second parameter is an (currently) undefined variable named index. additionally, your function ignores the second parameter completely.

[deric]

you need to enclose the page's name with quotes like

getMakeIndexPage(this.value, 'index');

without the quotes, javascript will translate it as a variable and will produce an error because it's undefined.

and then add the second parameter on your function to receive the page name.