Four Methods for passing parameters between HTML pages using JavaScript

We know that on the server side ASP, JSP, etc.ProgramParameters sent from form on the HTML page can be accepted. So, can we pass parameters to the HTML page. Yes.
Principle: parameters are obtained using the delimiter in window. Location. href.
Method 1:

/*
* Function: obtain parameters from href.
* Shref: http://www.cscenter.com.cn/arg.htm? Arg1 = D & arg2 = Re
* Sargname: arg1, arg2
* Return: the value of Arg. D, re
  */
Function Getargsfromhref (shref, sargname)
{
VaR ARGs = Shref. Split ( " ? " );
VaR Retval =   "" ;

If (ARGs [ 0 ] = Shref) /* The parameter is null. */
{
Return Retval; /* No action required */
}
VaR Str = ARGs [ 1 ];
ARGs = Str. Split ( " & " );
For ( VaR I =   0 ; I < Args. length; I ++ )
{
Str = ARGs [I];
VaR ARG = Str. Split ( " = " );
If (Arg. Length <=   1 ) Continue ;
If (ARG [ 0 ] = Sargname) retval = Arg [ 1 ];
}
Return Retval;
}

Method 2: Function Getvalue (name)
{
VaR Str = Window. Location. search;
If (Str. indexof (name) ! =- 1 )
{
VaR Pos_start = Str. indexof (name) + Name. Length + 1 ;
VaR Pos_end = Str. indexof ( " & " , Pos_start );
If (Pos_end =- 1 )
{
Return Str. substring (pos_start );
}
Else
{
Return Str. substring (pos_start, pos_end)
}
}
Else
{
Return   " No such name value " ;
}
}
Alert (getvalue (name ));

Method 3:

Request = {
Querystring: Function (Item ){
VaR Svalue = Location. Search. Match ( New Regexp ( " [\? \ &] "   + Item +   " = ([^ \ &] *) (\ &?) " , " I " ));
Return Svalue ? Svalue [ 1 ]: Svalue;
}
}
Alert (request. querystring ( " ID " ));

Method 4: VaR URL = Location. search;
VaR Request =   New Object ();
If (URL. indexof ( " ? " ) ! =- 1 )
{
VaR Str = URL. substr ( 1 ); // Remove? No.
STRs = Str. tolowercase ();
STRs = STRs. Split ( " & " );
For ( VaR I = 0 ; I < STRs. length; I ++ )
{
Request [STRs [I]. Split ( " = " )[ 0 ] = Unescape (STRs [I]. Split ( " = " )[ 1 ]);
}
}

VaRMapwidth=Request ["W"];
VaRMapheight=Request ["H"];