Simple JavaScript Code

Help Please..

[emoshe]

Hi All,

I have this simple JavaScript code that takes the variable "key" from the url and print it somewhere in the page. I want to change it so if there is no variable key supplied, it will print a default value I will specify. As I have no idea in JavaScript coding, I'll appreciate if someone can help me with this. Here is the code:

<script language="JavaScript"> 
<!-- 
// Get the value of the variable "key" and print
addr_str = document.URL.substring(document.URL.indexOf('?key=')+5, document.URL.length); 
document.write(addr_str.replace(/\+/gi, ' ')); 
--> 
 </script>

Thank you,
Eyal

[Mohsen]

"?key" may not be correct. You should check both "&key=" and "?key=".
Here is the correct code:

if (document.URL.indexOf('?key=')!= -1)
 addr_str=document.URL.substring(document.URL.indexOf('?key=')+5, document.URL.length);
else if (document.URL.indexOf('&key=')!= -1)
 addr_str=document.URL.substring(document.URL.indexOf('&key=')+5, document.URL.length);
else
{
// parameter does not exists
// do somthing
}

[emoshe]

Thank you very much Moshen - it works perfectly!