problem when comparing strings containing "&"

@xghostNov 28.2005

hi.
i am using javascript to compare two strings. it works well with normal strings. but when the strings contain “&” (e.g. & #1234 ; ), it does not work well.

code:
q = document.getElementById(“q”).value;
a = document.getElementById(“a”).value;
if (q == a)
document.formName.all(“check”).innerText = “correct”;
else
document.formName.all(“check”).innerText = “wrong”;

anyone have any idea to solve this problem.. thanks.

to post a comment

JavaScript

@FangNov 28.2005 — #Give a complete code example

btw best not use [I]all("check").innerText[/I], it only works in IE

@xghostauthorNov 29.2005 — #code:

function autoGrade() {

q = document.getElementById("q").value;

a = document.getElementById("a").value;

if (q == a)

document.formName.all("check").innerText = "correct";

else

document.formName.all("check").innerText = "wrong";

}

<form name="formName">

<input type="text" id="q" name="q" value="" />

 <input type="hidden" id="a" name="a" value="& #1234;" />
   <span id="check"></span>
   <input type="button" value="Submit" onClick="autoGrade()" />
   </form>

if dont use use all("check").innerText, then what is the alternative?

thanks.

@FangNov 29.2005 — #The example given works for me.

&lt;!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
 "http://www.w3.org/TR/html4/strict.dtd"&gt;
 &lt;html lang="en"&gt;
 &lt;head&gt;
 &lt;title&gt;q &amp;amp; a&lt;/title&gt;
 &lt;meta http-equiv="Content-Type" content="text/html; charset=utf-8"&gt;
 
 &lt;script type="text/javascript"&gt;
 function autoGrade(objID) {
 var q = document.getElementById("q").value;
 var a = document.getElementById("a").value;
 var answer=(q == a)? "correct" : "wrong";
 var obj=document.getElementById(objID);
 if(obj.firstChild!=null) { // obj already contains text
 obj.firstChild.data=answer;
 }
 else { // obj contains no text
 var tn=document.createTextNode(answer);
 obj.appendChild(tn);
 }
 }
 &lt;/script&gt;
 
 &lt;/head&gt;
 &lt;body&gt;
 &lt;form name="formName" action="#"&gt;
 &lt;div&gt;
 &lt;input type="text" id="q" name="q" value=""&gt;
 &lt;input type="hidden" id="a" name="a" value="&amp;amp; #1234;"&gt;
 &lt;span id="check"&gt;&lt;/span&gt;
 &lt;input type="button" value="Submit" onclick="autoGrade('check')"&gt;
 &lt;/div&gt;
 &lt;/form&gt;
 &lt;/body&gt;
 &lt;/html&gt;

@xghostauthorDec 02.2005 — #hey. thanks a lot Fang.

problem when comparing strings containing "&"

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