Simple html and javascript files - Some part of the javaScript isn't working -


i have no idea why script isn't working. when unchecked boldface , italic checkbox, supposed make text "web design" normal. , also, alignment , backgroundcolor javascript aren't working @ all. appreciate if can help.

<!doctype html>    <html>  <head>  <meta charset="utf-8">  <title> <!-- put page title here -->  </title>    <style>  td{border:1px solid;}      </style>  </head>    <body>    <form action=""  method="get">    <table>    <tr>  <td width="300px"> <span id="textmessage">web design</span></td>  </tr>    <tr>  <td></td>  <td><span>boldface</span></td>  <td><input type="checkbox" name="type" id="typebold" value="boldface" onclick="setbold();" /></td>  <td ></td>  <td><span>italicized</span></td>  <td><input type="checkbox" name="type" id="typeitalic" value="italics" onclick="setitalic();" />  </td>  <td></td>  </tr>    <tr>  <td><span>left</span></td>  <td><input type="radio" id="align" name="align" value="left" onclick="setalign();"/></td>  <td></td>  <td>center</td>  <td><input type="radio" id="align" name="align" value="center" onclick="setalign();" /></td>  <td></td>  <td>right</td>   <td><input type="radio" id="align" name="align" value="right" onclick="setalign();"/>  </td>  <td></td>  </tr>      <tr>  <td>red</td>  <td><input type="radio" id="color" name="color" value="red" onclick="setcolor();"/></td>  <td></td>  <td>blue</td>  <td><input type="radio" id="color" name="color" value="blue" onclick="setcolor();" /></td>  <td></td>  <td>green</td>  <td><input type="radio" id="color" name="color" value="green" onclick="setcolor();"/>  </td>  <td></td>  </tr>      <tr>  <td ><input type="submit" /></td>  </tr>    </table>    </form>    <script>    function setbold(){    var type = document.getelementbyid("typebold").value;    var text = document.getelementbyid("textmessage");	    if(type!=null){    text.style.fontweight = "bold";  return false;  } else{  text.style.fontweight = "normal";  }  }    function setitalic(){    var type = document.getelementbyid("typeitalic").value;    var text = document.getelementbyid("textmessage");	    if(type!=null){    text.style.fontstyle = "italic";  return false;  } else{  text.style.fontstyle = "normal";  }  }      function setalign(){    var type = document.getelementbyid("align").value;    var text = document.getelementbyid("textmessage");	    if(type=="left"){    text.style.textalign = "left";  return false;  }   else if (type=="center"){  text.style.textalign = "center";  return false;  }  else{    text.style.textalign = "right";  return false;  }  }      function setcolor(){    var type = document.getelementbyid("color").value;    var text = document.getelementbyid("textmessage");	    if(type=="green"){    text.style.backgroundcolor = "lightgreen";  return false;  }   else if (type=="blue"){  text.style.backgroundcolor = "lightblue";  return false;  }  else{    text.style.textalign.backgroundcolor = "tomato";  return false;  }  }  </script>      </body>  </html>

the problem because using value attribute of checkbox. should using checked.

your setbold function should bellow

function setbold() {     var ischecked = document.getelementbyid("typebold").checked;     var text = document.getelementbyid("textmessage");     if (ischecked) {         text.style.fontweight = "bold";     } else {         text.style.fontweight = "normal";     } }

you cannot have more 1 element same id better change them alignleft, aligncenter & alignright.


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