javascript Get url parameters and get url parameter function code in script tag_javascript skills

//lastest:
var getArgs =function() {//get url querystring
var params=document.location.search,reg=/(?:^?|&)(.*?)=(.*?)(?=&|$ )/g,temp,args={};
while((temp=reg.exec(params))!=null) args[temp[1]]=decodeURIComponent(temp[2]);
return args;
};
//Just take one:
var queryString=function(key){
return (document.location.search.match(new RegExp("(?:^\? |&)" key "=(.*?)(?=&|$)"))||['',null])[1];
}
var args=getArgs();
alert(args.name " | " args.sex " | " args.age);
//Test link: test getQueryString< /a>

var getScriptArgs=function(){//Get multiple parameters
var scripts=document.getElementsByTagName("script"),
script=scripts[scripts.length -1], //Because the following script tags have not been loaded when the current dom is loaded, the last one is the current script
src=script.src,
reg=/(?:?|&)(. *?)=(.*?)(?=&|$)/g,
temp,res={};
while((temp=reg.exec(src))!=null) res[ temp[1]]=decodeURIComponent(temp[2]);
return res;
};
var args=getScriptArgs();
alert(args.a " | " args.b " | " args.c);
//If the above js is in the script of js1.js

var getScriptArg=function(key){//Get a single parameter
var scripts=document.getElementsByTagName("script"),
script=scripts[scripts .length-1],
src=script.src;
return (src.match(new RegExp("(?:\?|&)" key "=(.*?)(?=&| $)"))||['',null])[1];
};
alert(getScriptArg("c"));