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Revision: 51113
at September 14, 2011 22:01 by DenoteIt
Initial Code 
function getJSvars(script_name, var_name, if_empty) {

	var script_elements = document.getElementsByTagName('script');

	if(if_empty == null) {var if_empty = '';}

	for (a = 0; a < script_elements.length; a++) {
		var source_string = script_elements[a].src;
		if(source_string.indexOf(script_name)>=0) {

		var_name = var_name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
		var regex_string = new RegExp("[\\?&]"+var_name+"=([^&#]*)");
		var parsed_vars = regex_string.exec(source_string);
		if(parsed_vars == null) { return if_empty; }
		else { return parsed_vars[1]; }

		}
	}
}
Initial URL 
http://posheika.net/?p=42
Initial Description 
Pass variables into javascript files using query strings, and return them using getJSvars()
Example

//HTML
<script>

//return the value of "foo"
getJSvars('filename.js', 'foo');
Initial Title 
Pass variables into javascript via query strings
Initial Tags 
javascript, query
Initial Language 
JavaScript