Parse URL strings in HTML pages using JavaScript

/// Reads the URL string as a key-value pair.

///For exampleHttp: // 192.168.1.211/jcysoft6.0 _ Changzhi/vacation.htm? Id = 1 & Action = add
FunctionGetquerystring (key)

{

VaRValue = "";

///Get the URL of the current page

VaRSurl = Invalid Response Doc ument. url;

/// URLWhether the query string is included in

If(Surl. indexof ("? ")> 0)

{

//Break down the URL. The second element is the complete query string.

//That is, the value of arrayparams [1] is [ID = 1 & Action = 2]

VaRArrayparams = Surl. Split ("? ");

//Break down query strings

// Arrayurlparams [0]The value is [ID = 1]

// Arrayurlparams [2]The value is [Action = add]

VaRArrayurlparams = arrayparams [1]. Split ("&");

//Traverse the decomposed key-value pairs

For(VaRI = 0; I <arrayurlparams. length; I ++)

{

//Break down a key-Value Pair

VaRSparam = arrayurlparams [I]. Split ("= ");

If(Sparam [0] = Key) & (sparam [1]! = ""))

{

//The matched key is found and the value is not empty.

Value = sparam [1];

Break;

}

}

}

ReturnValue;

}