JS获取URL参数值

 

 

function getQueryString(name) {
	    var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)", "i");
	    var r = window.location.search.substr(1).match(reg);
	    if (r != null) {
	    	return unescape(r[2])
	    }else{
	    	return null
	    }
	}