Solved

javascript select box issue

Posted on 2007-12-06
4
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Last Modified: 2008-02-01
I am using this solution to make my option elements disabled in IE:
http://www.experts-exchange.com/Programming/Languages/Scripting/JavaScript/Q_22993394.html

Problem is that I want to redirect on some link depending on selected option.

When  I put this code on select box: onChange="window.location.href=this.options[this.selectedIndex].value;" it cannot be done because there is already used this event in code above?

So, I set that code inside script, but it applies on all select boxes on page and I want to make it available only for one of them, on these that have id named "test"

Code from oveve script:
 
window.onload = function() {
	if (document.getElementsByTagName) {
		var s = document.getElementsByTagName("select");
 
		if (s.length > 0) {
			window.select_current = new Array();
 
			for (var i=0, select; select = s[i]; i++) {
				select.onfocus = function(){ window.select_current[this.id] = this.selectedIndex; }
				select.onchange = function(){ restore(this); 
				window.location.href=this.options[this.selectedIndex].value;
				}
				
				emulate(select);
			}
		}
	}
	window.location.href=this.options[this.selectedIndex].value;
}
 
function restore(e) {
	if (e.options[e.selectedIndex].disabled) {
		e.selectedIndex = window.select_current[e.id];
	}
}
 
function emulate(e) {
	for (var i=0, option; option = e.options[i]; i++) {
		if (option.disabled) {
			option.style.color = "graytext";
		}
		else {
			option.style.color = "menutext";
		}
	}
}
 
 
This is my select box for jump menu:
 
<select name="test" id="test">
    <option value="1">1</option>
    <option value="2">2</option>
  </select>

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Question by:zvucini
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4 Comments
 

Expert Comment

by:moomooneo
ID: 20425166
Try this:
1. move the javascript to the end of the html (always recommended);
2. Change this line of code
       var s = document.getElementsByTagName("select");
to
       var s = document.getElementsById("test");
0
 
LVL 2

Author Comment

by:zvucini
ID: 20425264
I tried, but it returns error.
0
 
LVL 5

Accepted Solution

by:
TheGD earned 500 total points
ID: 20426799
Replace the window.onload function with the following:
window.onload = function() {
	if (document.getElementsByTagName) {
		var s = document.getElementsByTagName("select");
 
		if (s.length > 0) {
			window.select_current = new Array();
 
			for (var i=0, select; select = s[i]; i++) {
				if (select.id == "test") {
					select.onfocus = function(){ window.select_current[this.id] = this.selectedIndex; }
					select.onchange = function(){ restore(this); 
					window.location.href = this.options[this.selectedIndex].value;
					}
				
					emulate(select);
				}
			}
		}
	}
	//window.location.href=this.options[this.selectedIndex].value;
}

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0
 
LVL 2

Author Comment

by:zvucini
ID: 20427016
Excellent!
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