Problem when calling a Javascript function

**Truster** · 21-07-2010

I am having problems while calling the Javascript function while loading jsp. Since, I have recently started doing this, I am not having enough knowledge about it. How can call a JavaScript function to run whenever a particular show jsp? Onload event would be similar to html, not if I have explained well. I think that there should be someone who has good knowledge about this topic. I am requesting to all those person to help me with proper explanation. Any other information would be greatly appreciable.!!

Any sample of coding would be helpful.!!

**X-Ray** · 21-07-2010

If you want to call the function, I would say that you will have to do the same way as in HTML :

HTML Code:

<body onload="javascript:funcion();">
 ...
 </ Body>

And if you use any library, sure you have some form as a function ready () in jQuery.

**Shell** · 21-07-2010

The basics:

Code:

<script>
     window.onload = function () (...  )
 </ Script>

And just in case you have other scripts that should run when the page loads, you could do:

Code:

<script>
     oldonload = window.onload;
     window.onload = function () (oldonload (); ...  )
 </ Script>

Or what locovich says that if you use some library (Prototype, jQuery, Mootools, etc.) to help you manage the event management and drivers, then even better. Surely there have a (...) or $ Event.observe (document). Ready (...) or something similar.

**Truster** · 21-07-2010

Thanks everyone for trying to help me. I have a menu with options :

Code:

function reset () ( 
document.form1.option.checked = 0 
) 

... 
name="form1" <form method="post" action="/servlet/inform"> 
id="timporte" <table width="390"> 
<tr> 
<input <td> type="radio" name="option" value="radiobutton"> </ td> 
<td> Media </ td> 
</ Tr> 
<tr> 
<input type="radio" name="option" <td> value="radiobutton"> </ td> 
<td> Sum </ td> 
</ Tr> 
<tr> 
<input type="radio" name="option" <td> value="radiobutton"> </ td> 
<td> Intevalo </ td> 
</ Tr> 
<tr> 
<td height="50"> </ td> 
<td colspan="2"> <a href = "#" onclick = "javascript : Reset ()">< img src = "icons \ botonreset.png" name = "reset"> </ a> 
</ Td> 
</ Tr> 
</ Table> 
</ Form>

I am having the problem while calling the Javascript function here. What I do is that when you tighten the link will deselect the option that has been tight. My problem is that a hyperlink does not, however, if instead of put a hyperlink button image type (<input name = "reset" type = "image" src = "\ icons \ botonreset.png" onClick = " javascript : ()">) Reset ... so if it works. But I can not put a button because I will tighten the page listed in the action of the form. That I can do? So please explain me this scenario properly.

**Mecurtis** · 21-07-2010

How are you trying to call the function from the link..?? so

I say this because I see that you write this

Code:

onClick = "javascript : Reset () ">

to call a function with no need to put onclick

onclick = "javascript : Reset () "but onclick ="reset()"

**Adley** · 21-07-2010

You should also know the basic things while calling a Javascript function. It passes through each of the elements that share the name. You can try the following code :

Code:

function reset () (
 for (m = 0, m <document.form1.option.length; m + +) (
	 document.form1.option[m]. checked = false
	 )
 )

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