var colour;
var htmlOn;

//Function to format text in the text box
function FormatText(command, option){

	//Colour pallete
	if ((command == "forecolor") || (command == "hilitecolor")) {
		
		parent.command = command;
		buttonElement = document.all(command);
		frames.message.focus()
		document.all.colourPalette.style.left = getOffsetLeft(buttonElement) + "px";
		document.all.colourPalette.style.top = (getOffsetTop(buttonElement) + buttonElement.offsetHeight) + "px";
		
		if (document.all.colourPalette.style.visibility=="hidden")
			document.all.colourPalette.style.visibility="visible";
		else {
			document.all.colourPalette.style.visibility="hidden";
		}
		
		//get current selected range
		var sel = frames.message.document.selection; 
		if (sel != null) {
			colour = sel.createRange();
		}
	}

	//Text Format
	frames.message.focus();
  	frames.message.document.execCommand(command, false, option);
  	frames.message.focus();
}

//Function to add image
function AddImage(){	
	imagePath = prompt("Informe o endereço da imagem relativo a web ", "http://");				
	
	if ((imagePath != null) && (imagePath != "")){	
		frames.message.focus(); 				
		frames.message.document.execCommand("InsertImage", false, imagePath);
	}
	frames.message.focus();			
}

//Function to switch to HTML view
function HTMLview() {

	//WYSIWYG view
	if (htmlOn == true) {
		var html = frames.message.document.body.innerText;
		frames.message.document.body.innerHTML = html;
		ToolBar1.style.visibility="visible";
		ToolBar2.style.visibility="visible";
		htmlOn = false;
	
	//HTML view
	} else {
		
		var html = frames.message.document.body.innerHTML;
		frames.message.document.body.innerText = html;
    		ToolBar1.style.visibility="hidden";
    		ToolBar2.style.visibility="hidden";
    		htmlOn = true;
    	}	
}

//Function to set colour
function setColor(color) {

	//retrieve selected range
	var sel = frames.message.document.selection; 
	if (sel!=null) {
		var newColour = sel.createRange();
		newColour = colour;
		newColour.select();
	}
		
	frames.message.focus();
	frames.message.document.execCommand(parent.command, false, color);
	frames.message.focus();
	document.all.colourPalette.style.visibility="hidden";
}

//Function to clear form
function ResetForm(){

	if (window.confirm("Você tem certeza que deseja resetar o formulário?")){
		frames.message.focus();
	 	frames.message.document.body.innerHTML = ""; 
	 	return true;
	 } 
	 return false;		
}

//Function to add smiley
function AddSmileyIcon(imagePath){	
	frames.message.focus();								
	frames.message.document.execCommand("InsertImage", false, imagePath);
}

//Colour pallete top offset
function getOffsetTop(elm) {
	var mOffsetTop = elm.offsetTop;
	var mOffsetParent = elm.offsetParent;
	while(mOffsetParent){
		mOffsetTop += mOffsetParent.offsetTop;
		mOffsetParent = mOffsetParent.offsetParent;
	}
	return mOffsetTop;
}

//Colour pallete left offset
function getOffsetLeft(elm) {
	var mOffsetLeft = elm.offsetLeft;
	var mOffsetParent = elm.offsetParent;
	while(mOffsetParent) {
		mOffsetLeft += mOffsetParent.offsetLeft;
		mOffsetParent = mOffsetParent.offsetParent;
	}
	return mOffsetLeft;
}

//Function to hide colour pallete
function hideColourPallete() {
	document.getElementById("colourPalette").style.visibility="hidden";
}