function doImage() 

{ 

var imgSrc = prompt('Enter image location', ''); 



if(imgSrc != null) 

iView.document.execCommand('insertimage', false, imgSrc); 

}

function doRule() 

{ 

iView.document.execCommand('inserthorizontalrule', false, null); 

}
<script language="JavaScript">

var viewMode = 1; // WYSIWYG

// Other code exists here

function doToggleView() 

{ 

if(viewMode == 1) 

{ 

iHTML = iView.document.body.innerHTML; 

iView.document.body.innerText = iHTML; 



// Hide all controls 

tblCtrls.style.display = 'none'; 

selFont.style.display = 'none'; 

selSize.style.display = 'none'; 

selHeading.style.display = 'none'; 

iView.focus(); 



viewMode = 2; // Code 

} 

else 

{ 

iText = iView.document.body.innerText; 

iView.document.body.innerHTML = iText; 



// Show all controls 

tblCtrls.style.display = 'inline'; 

selFont.style.display = 'inline'; 

selSize.style.display = 'inline'; 

selHeading.style.display = 'inline'; 

iView.focus(); 



viewMode = 1; // WYSIWYG 

} 

}