JavaScript - Is If (var==4) {do Something} Valid?

Note that this is not a script in and of itself, just a section of it, and this seems to be the area that is giving me problems, so I thought I'd post here to see whether it was valid code.

Code:

var coords
if(window.location.href == "http://en59.tribalwars.net/game.php?village=114100&screen=place")
{
coords = prompt("Please enter the coordinates of the village you want to send a fake to.","|");
}
coords=coords.split('|');

As I said, don't expect to make sense of it, as it is just a snippet taken from a script, but this is the part of it which is messing up the script, so I wanted to post here to see whether everything in the above code, the syntax of it and the if statement - is valid. Would that if statement, if used in a proper script, be working, or is there something wrong with it which could be giving me errors?

Thanks for your help in advance.

Code:

<input name="1" value="1" id="1" type="radio" onClick="change(this)">
<input name="1" value="2" id="2" type="radio" onClick="change(this)">
<input name="1" value="3" id="3" type="radio" onClick="change(this)">
<br>
<input name="2" value="4" id="4" type="radio" onClick="change(this)">
<input name="2" value="5" id="5" type="radio" onClick="change(this)">
<input name="2" value="6" id="6" type="radio" onClick="change(this)">
<br>
<input name="3" value="7" id="7" type="radio" onClick="change(this)">
<input name="3" value="8" id="8" type="radio" onClick="change(this)">
<input name="3" value="9" id="9" type="radio" onClick="change(this)">
<div id="tab3continue">
Hello
</div>
<script>
var tab3_button = document.getElementById('tab3continue');
  tab3_button.style.visibility = 'hidden';
  function change(switchElement) {
        if ((switchElement.value == '1' || '2' || '3' )&&(switchElement.value == '4' || '5' || '6')&&(switchElement.value == '7' || '8' || '9')) {
                tab3_button.style.visibility = 'visible';
        } else {
                tab3_button.style.visibility = 'hidden';  
        }             
}
</script>

So I have a div(tab3continue) which is hidden and want is visible if either 1, 2, 3 are selected AND either 4, 5, 6 are selected AND either 7, 8, 9 is selected. so need one from each group to be selected to make visible.

Could someone tell me if this code could work or where I am going wrong?

Thanks
-------------
Jay

Is the window.status still useful nowadays or is it outdated? If it is still used, why doesn't this work please?

Code:

<a href="javascript_status_bar_messages.cfm"
  onMouseover="JavaScript:window.status='Status Bar Message goes here'; return true"
  onMouseout="JavaScript:window.status=''; return true">Hover over me!</a>

Complete newbie to JS,

If button is clicked, want form to be validated. If the validation passes then bring up print dialogue

I have got the validation (using dreamweaver) working, however if the form is correct , how do I get the print dialogue (window.print()) to appear?

here's the code

Code:

<script language="JavaScript" type="text/JavaScript">
<!--
function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_validateForm() { //v4.0
  var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
  
  for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=MM_findObj(args[i]);
    if (val) { nm=val.name; if ((val=val.value)!="" ) {
      if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
        if (p<1 || p==(val.length-1)) errors+='- '+nm+' must contain an e-mail address.\n';
      } else if (test!='R') { num = parseFloat(val);
        if (isNaN(val)) errors+='- '+nm+' must contain a number.\n';
        if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
          min=test.substring(8,p); max=test.substring(p+1);
          if (num<min || max<num) errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';
    } } } else if (test.charAt(0) == 'R') errors += '- '+nm+' is required.\n'; }
			
  } if (errors) alert('The following error(s) occurred:\n'+errors);
  document.MM_returnValue = (errors == '');
 
}
//-->
</script>

Code:

  <td><input name="Name" type="text" id="Name" size="50" maxlength="50"></td>

	<input name="Button" type="button" onClick="MM_validateForm('Name','','R');return document.MM_returnValue" value="Button" />