方法一：

<

script 

type

="text/javascript"

>

<!--

function

 Request(strName){

 

var

 strHref 

=

"

www.cnlei.org/index.htm?a=aaa&b=bbb&c=ccc

"

;

 

var

 intPos 

=

 strHref.indexOf(

"

?

"

);

 

var

 strRight 

=

 strHref.substr(intPos 

+

 

1

);

 

var

 arrTmp 

=

 strRight.split(

"

&

"

);

 

for

(

var

 i 

=

 

0

; i 

<

 arrTmp.length; i

++

) {

 

var

 arrTemp 

=

 arrTmp[i].split(

"

=

"

);

 

if

(arrTemp[

0

].toUpperCase() 

==

strName.toUpperCase()) 

return

 arrTemp[

1

];

 }

 

return

 

""

;

}

alert(Request(

"

a

"

));

alert(Request(

"

b

"

));

alert(Request(

"

c

"

));

//

-->

</

script

>

方法二：

<

script 

type

="text/javascript"

>

<!--

String.prototype.getQuery 

=

 

function

(name) {

　　

var

 reg 

=

 

new

 RegExp(

"

(^|&)

"

+

 name

+

"

=([^&]*)(&|$)

"

);

　　

var

 r 

=

 

this

.substr(

this

.indexOf(

"

\?

"

)

+

1

).match(reg);

　　

if

 (r

!=

null

) 

return

 unescape(r[

2

]); 

return

 

null

;

}

var

 strHref 

=

"

www.cnlei.org/index.htm?a=aaa&b=bbb&c=ccc

"

;

alert(strHref.getQuery(

"

a

"

));

alert(strHref.getQuery(

"

b

"

));

alert(strHref.getQuery(

"

c

"

));

//

-->

</

script

>

方法三：

<

script 

type

="text/javascript"

>

function

 getUrlPara(paraName){

 varsUrl  

=

  location.href;

 varsReg  

=

  

"

(?:\\?|&){1}

"

+

paraName

+

"

=([^&]*)

"

 

var

 re

=

new

 RegExp(sReg,

"

gi

"

);

 re.exec(sUrl);

 

return

 RegExp.$

1

;

}

//

应用实例：test_para.html?a=11&b=22&c=33

alert(getUrlPara(

"

a

"

));

alert(getUrlPara(

"

b

"

));

</

script

>