(BHO) How to modify web content

wencss

When working on an Internet cafe advertising system, you need to add the advertising code in IE. What method can be used to modify the content of the webpage, thank you very much, the original innerHtml is used, but the original webpage code will be overwritten.

54646565

You can add new things through the document object, such as document.createElement

<SCRIPT>
function fnCreate(){
    oData.innerHTML="";
    var oOption=oSel.options[oSel.selectedIndex];
    if(oOption.text.length>0){
    var aElement=document.createElement(oOption.text);
    eval("aElement." + oOption.value + "='" + oText.value + "'");
    if(oOption.text=="A"){
        aElement.href="javascript:alert('A link.')";
   }
   }
    oData.appendChild(aElement);
}
</SCRIPT>
<SELECT ID="oSel" onchange="fnCreate()">
<OPTION VALUE="innerText">A
<OPTION VALUE="value">&lt;INPUT TYPE="button"&gt;
</SELECT>
<INPUT TYPE="text" ID="oText" VALUE="Sample Text">
<SPAN ID="oData" ></SPAN>

tianfeng

You will receive a window object in your implementation of IDispatch.Invoke, when the DocumentComplete event is fired (http://support.microsoft.com/kb/180366).

call
document.parentWindow.execScript(MY_SCRIPT_AS_STRING,'JavaScript');