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Feb 21, 2002, 13:13 #1SitePoint Member
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Second call to fuction gives object required error
Hi I'm New to Javascript so sorry if I'm being Silly
I'm trying to build a cascading menu in javascript I got as far as this ; all I want to do is Re-draw the whole page when the link is clicked however I get an object required message the second time the link is clicked (I,m using IE 5)
-----------------------
<script language=javascript>
function drawtable() {
// draw the table
document.write ("<TABLE cellspacing=\"0\" border=\"1\" cellpadding=\"0\" bordercolor=\"#000000\">") ;
for (var i = 0 ; i < MainMenu.length ; i++ ) {
document.write("<TR><TD bgcolor=\"#999966\">");
document.write("<FONT size=2 face=\"Verdana\" color=\"#000000\">") ;
document.write(MainMenu[i]) ;
document.write("</FONT></TD></TR>");
}
document.write("</TABLE>") ;
document.write("<A href=\"dummy.html\" onclick=\"Javascript:drawtable();return false\">Click here</A>") ;
}
// array to store the menu items
var MainMenu = new Array ("Main Menu Item 1",
"Main Menu Item 2",
"Main Menu Item 3",
"Main Menu Item 4",
"Main Menu Item 5",
"Main Menu Item 6") ;
</script>
<HTML><HEAD>
<BODY>
<A href="dummy.html" onclick="Javascript:drawtable();return false">Click here</A>
</BODY></HTML>
-------------------------------
Thanx In advanceLast edited by ArjunaK; Feb 21, 2002 at 13:37.
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Feb 21, 2002, 20:57 #2Currently Occupied; Till Sunda
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This works for me, try that.
<script language=javascript>
function drawtable() {
// draw the table
document.write ("<TABLE cellspacing=\"0\" border=\"1\" cellpadding=\"0\" bordercolor=\"#000000\">") ;
for (var i = 0 ; i < MainMenu.length ; i++ ) {
document.write("<TR><TD bgcolor=\"#999966\">");
document.write("<FONT size=2 face=\"Verdana\" color=\"#000000\">") ;
document.write(MainMenu[i]) ;
document.write("</FONT></TD></TR>");
}
document.write("</TABLE>") ;
document.write("<A href=\"dummy.html\" onclick=\"javascript:drawtable();return false\">Click here</A>");
}
// array to store the menu items
var MainMenu = new Array ("Main Menu Item 1",
"Main Menu Item 2",
"Main Menu Item 3",
"Main Menu Item 4",
"Main Menu Item 5",
"Main Menu Item 6") ;
</script>
<HTML><HEAD>
<BODY>
<A href="dummy.html" onclick="javascript:drawtable();return false">Click here</A>
</BODY></HTML>
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Feb 21, 2002, 20:59 #3Currently Occupied; Till Sunda
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Sry I just realised what you was trying todo
well, heres a tip.
when you click the button once. It write's
<TABLE cellspacing="0" border="1" cellpadding="0" bordercolor="#000000">
<TR>
<TD bgcolor="#999966"><FONT size=2 face="Verdana" color="#000000">Main Menu Item 1</FONT></TD>
</TR>
<TR>
<TD bgcolor="#999966"><FONT size=2 face="Verdana" color="#000000">Main Menu Item 2</FONT></TD>
</TR>
<TR>
<TD bgcolor="#999966"><FONT size=2 face="Verdana" color="#000000">Main Menu Item 3</FONT></TD>
</TR>
<TR>
<TD bgcolor="#999966"><FONT size=2 face="Verdana" color="#000000">Main Menu Item 4</FONT></TD>
</TR>
<TR>
<TD bgcolor="#999966"><FONT size=2 face="Verdana" color="#000000">Main Menu Item 5</FONT></TD>
</TR>
<TR>
<TD bgcolor="#999966"><FONT size=2 face="Verdana" color="#000000">Main Menu Item 6</FONT></TD>
</TR>
</TABLE>
<A href="dummy.html" onclick="javascript:drawtable();return false">Click here</A>
so theres no function to be called on that page.Last edited by Andrew-J2000; Feb 21, 2002 at 23:38.
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Feb 21, 2002, 23:55 #4Currently Occupied; Till Sunda
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Do you want it to do this?
<script language=javascript>
function drawtable() {
// draw the table
document.write ("<TABLE cellspacing=\"0\" border=\"1\" cellpadding=\"0\" bordercolor=\"#000000\">") ;
for (var i = 0 ; i < MainMenu.length ; i++ ) {
document.write("<TR><TD bgcolor=\"#999966\">");
document.write("<FONT size=2 face=\"Verdana\" color=\"#000000\">") ;
document.write(MainMenu[i]) ;
document.write("</FONT></TD></TR>");
}
document.write("</TABLE>") ;
document.write("<A href=\"dummy.html\">Click here</A>");
}
// array to store the menu items
var MainMenu = new Array ("Main Menu Item 1",
"Main Menu Item 2",
"Main Menu Item 3",
"Main Menu Item 4",
"Main Menu Item 5",
"Main Menu Item 6") ;
</script>
<HTML><HEAD>
<BODY>
<A href="dummy.html" onclick="javascript:drawtable();return false">Click here</A>
</BODY></HTML>
or do you want javascript to call another function?
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Feb 22, 2002, 00:26 #5You talkin to me?
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You know, a cascading menu probably isn't a good place to start learning javascript. You should try to make smaller scripts until you understand how the language works better. Then you'll have a better idea of how to go about making a cascading menu.
ck :: bringing chris to the masses.
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Feb 22, 2002, 11:31 #6SitePoint Member
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Fix one problem and another pops up
Thanks Andrew for helping me out
What you are saying is that document.write() overwrites the whole page. (correct me if I'm wrong) .
What I'm trying to do is to redraw the whole menu with each click (I was planning on putting in the sub menus later)
I've got a fix that works but brings up another problem
What I did is I moved the javascript to a separate file. I don't get any errors anymore however when the menu gets redrawn the original stuff is still there!!
HELP Please!
Here are the files
HTML
--------------------------------
<script language="javascript" src="functions.js">
</script>
<HTML><HEAD></head><BODY>
<A href="dummy.html" onclick="javascript:drawtable();return false">Click here</A>
</BODY></HTML>
--------------------------------------
Javascript
------------------------------------
// array to store the menu items
var MainMenu =
new Array ("Main Menu Item 1",
"Main Menu Item 2",
"Main Menu Item 3",
"Main Menu Item 4",
"Main Menu Item 5",
"Main Menu Item 6") ;
function drawtable() {
// draw the table
document.write ("<script language=\"JavaScript\" src=\"functions.js\">") ;
document.write ("</script>") ;
document.write ("<HTML><HEAD></head><BODY>") ;
document.write ("<TABLE cellspacing=\"0\" border=\"1\" cellpadding=\"0\" bordercolor=\"#000000\">") ;
for (var i = 0 ; i < MainMenu.length ; i++ ) {
document.write("<TR><TD bgcolor=\"#999966\">");
document.write("<FONT size=2 face=\"Verdana\" color=\"#000000\">") ;
document.write(MainMenu[i]) ;
document.write("</FONT></TD></TR>");
}
document.write("</TABLE>") ;
document.write("<A href=\"dummy.html\" onclick=\"javascript:drawtable();return false\">Click here</A>") ;
document.write ("</BODY></HTML>") ;
}
--------------------------
BTW Anachros I'm new to Javascript but have worked with Java before, and I've allready built a working pop up menu in Javascript . thought I could try and see if I could do this
.
I've actualy got this working in PHP so have a good Idea of what I want.
Thanks All.
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