Using javascript to call php function

[aeroswat]

I need to use a javascript function in order to call a php function and manipulate the resulting string. I've sort of done this with AJAX and $.post but I copied an example in order to do that. I'm not sure if I could replicate the same thing and return a string in some way like the following... here's the javascript function

 

	function lookup(inputString) {
	if(inputString.length == 0) {
	} else {
		$.post("returnstuff.php", {ss: ""+inputString+""}, function(data){
			if(data.length >0) {
				document.getElementById("thetextbox").value=data;
			}
		});
	}
} 

 

Then have returnstuff.php be a php file that echo's the result of a field from a database query... would this work for what i want it to do which is the following:

 

Input a code # in one textbox, press a button, have the php file query the database to find the definition for that code # and print the definition in a different text box.

[mikesta707]

theoretically, yes

[aeroswat]

theoretically, yes

 

it does work

Now I'd like to know... my host inserts extra ad code at the end of the page and it's including that in the data... how would i get rid of that? don't want it showing up in the textbox too like it is

[mikesta707]

is it the same string every time? if so a simple str_replace will do. if not a more complicated preg_replace using regex would probably suffice. a sample of what the extra code looks like would help

[aeroswat]

is it the same string every time? if so a simple str_replace will do. if not a more complicated preg_replace using regex would probably suffice. a sample of what the extra code looks like would help

 

i echo'd #STOP# after what my code was doing and then just used str.search() to find the position of the #STOP# and used only the stuff before it with str.substr()