var Common =
{
    baseUrl: null, 
	setBaseUrl: function(url)
    {
        Common.baseUrl = url || $('script[src$=scripts/common.js]')
            .attr('src')
            .replace(/scripts\/common.js$/,'');
    }, 
	url: function(url)
    {
        return this.baseUrl+url.replace(/^\/+/, '');
    },
	preg_grep: function (pattern, input, flags) {
		// Searches array and returns entries which match regex  
		// 
		// version: 911.2217
		// discuss at: http://phpjs.org/functions/preg_grep
		// +   original by: Brett Zamir (http://brett-zamir.me)
		// %          note 1: If pass pattern as string, must escape backslashes, even for single quotes
		// %          note 2: The regular expression itself must be expressed JavaScript style
		// %          note 3: It is not recommended to submit the pattern as a string, as we may implement
		// %          note 3:   parsing of PHP-style expressions (flags, etc.) in the future
		// *     example 1: var arr = [1, 4, 4.5, 3, 'a', 4.4];
		// *     example 1: preg_grep("/^(\\d+)?\\.\\d+$/", arr);
		// *     returns 1: {2: 4.5, 5: 4.4}
		var p='', retObj = {};
		var invert = (flags === 1 || flags === 'PREG_GREP_INVERT'); // Todo: put flags as number and do bitwise checks (at least if other flags allowable); see pathinfo()

		if (typeof pattern === 'string') {
			pattern = eval(pattern);
		}

		if (invert) {
			for (p in input) {
				if (!pattern.test(input[p])) {
					retObj[p] = input[p];
				}
			}
		} else {
			for (p in input) {
				if (pattern.test(input[p])) {
					retObj[p] = input[p];
				}
			}
		}

		return retObj;
	}
}
$(function(){
	Common.setBaseUrl();
});