Get query variables from url string with javascript

getQueryVAriables.js

//Get query variables from URL string
function getQueryVariable(variable) { 
	var query = window.location.search.substring(1); 
	var vars = query.split("&"); 
	
	for (var i=0;i<vars.length;i++) { 
		var pair = vars[i].split("="); if(pair[0] == variable) {
			return pair[1];
		} 
	} 
	return(false); 
}