javascript get parameters function

usually we want to parse data from url

this is good function ~

I'm not sure because I didn't test in all cases

so that use it before fully test

function  getQueryParams (url) {

var params = {};

var parameters = (url.slice(url.indexOf('?') + 1, url.length))

.split('&');

for (var i = 0; i < parameters.length; i++) {

var param = parameters[i].split('=');

params[param[0]] = param[1];

}

return params;

}