window.onload = startup;
function startup()
{
	// Add the highlights to input form items
	addHighlights();

	// Fix background PNG in IE6
	if(document.body.style.filter!=undefined)
	{
		var thisBody = document.getElementsByTagName('body')[0];
		thisBody.style.backgroundImage='none';
		thisBody.style.filter='progid:DXImageTransform.Microsoft.AlphaImageLoader(src="/images/Body.png", sizingMethod="scale")';
		
		var hhLogo = document.getElementById('hhLogo');
		hhLogo.style.backgroundImage='none';
		hhLogo.style.filter='progid:DXImageTransform.Microsoft.AlphaImageLoader(src="/images/hh2.png", sizingMethod="scale")';
	}
}
/******* HIGHLIGHT INPUT FIELDS *******************************/
lastFocused = '';

function addHighlights()
{
  	var inputs = document.getElementsByTagName("input");
	var textareas = document.getElementsByTagName("textarea");
	var selects = document.getElementsByTagName("select");

	var numInputs = inputs.length;
	var numTextAreas = textareas.length;
	var numSelects = selects.length;

	for ( i=0; i < numInputs; i++ )
	{
		var currentInput = inputs[i];
		currentInput.onfocus = onFocus;
		currentInput.onblur = onBlur;
		currentInput.onmouseover = onOver;
		currentInput.onmouseout = onOut;
	}

	for ( i=0; i < numTextAreas; i++ )
	{
		var currentTextArea = textareas[i];
		currentTextArea.onfocus = onFocus;
		currentTextArea.onblur = onBlur;
		currentTextArea.onmouseover = onOver;
		currentTextArea.onmouseout = onOut;
	}

	for ( i=0; i < numSelects; i++ )
	{
		var currentSelect = selects[i];
		currentSelect.onfocus = onFocus;
		currentSelect.onblur = onBlur;
		currentSelect.onmouseover = onOver;
		currentSelect.onmouseout = onOut;
	}
}
function onFocus()
{
	lastFocused = this;
	this.style.background = '#FFFFFF';
	this.style.border = '1px solid #FF9900';
	this.style.color = '#FF9900';
}
function onBlur()
{
	this.style.background = '#ECECEC';
	this.style.border = 'solid 1px #B0B0B0';
	this.style.color = '#000000';
}
function onOver()
{
	if (this != lastFocused)
	{
		this.style.background = '#F8F8F8';
		if (this.type == 'submit') this.style.cursor = 'pointer';
		if (this.type == 'button') this.style.cursor = 'pointer';
	}
}
function onOut()
{
	if (this != lastFocused)
	{
		this.style.background = '#ECECEC';
		this.style.border = 'solid 1px #B0B0B0';
		this.style.color = '#000000';
	}
}

// Insert links to specified elements/textboxes
function insertLink(elementId)
{
	var link = prompt("Please enter the link in the form of http://www.website.com/link.html", "");

	while (link != null && link.substr(0,7).toLowerCase() != 'http://')
	{
		alert('Link must start with http:// using format: http://www.website.com/link.html');
		var link = prompt("Please enter the link in the form of http://www.website.com/link.html", "");
	}
	
	if (link != null)
		var title = prompt("Please enter what the link should read (i.e. Click Here!): ","");

	if (link != null && title != null)
	{
		var textbox = document.getElementById(elementId);
		textbox.value += ' <a href="' + link + '">' + title + '</a> ';
	}
}

function addEvent(elm, evType, fn, useCapture)
// addEvent and removeEvent
// cross-browser event handling for IE5+,  NS6 and Mozilla
// By Scott Andrew
{
  if (elm.addEventListener){
    elm.addEventListener(evType, fn, useCapture);
    return true;
  } else if (elm.attachEvent){
    var r = elm.attachEvent("on"+evType, fn);
    return r;
  } else {
    alert("Handler could not be removed");
  }
} 
/**************************************************************************************************************/
// Create xmlhttp object based on browsertype
function getHTTPObject() {
	if (window.XMLHttpRequest)
	{
		  // If IE7, Mozilla, Safari, etc: Use native object
		  var xmlHttp = new XMLHttpRequest();
	} else {
		if (window.ActiveXObject)
		{
		  // ...otherwise, use the ActiveX control for IE5.x and IE6
		  var xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
		}
	}
	return xmlHttp;
}

/**************************************************************************************************************/
// Report media as spam/stolen/etc
function deleteImage(id, obj) {
	var sure = confirm ("Are you sure you want to delete this image?");
	if (sure)
	{
		obj.src = '/users/database/progress_circle.gif';
		
		var url = 'delete.php?image_id=' + id;
		
		loadHttp = getHTTPObject();
		loadHttp.open("GET", url, true);
		loadHttp.onreadystatechange = function()
		{
			if (loadHttp.readyState == 4)
			{
				if (loadHttp.responseText.indexOf('invalid') == -1)
				{
					obj.style.display="none";
				}
			}
		};
		loadHttp.send(null);
	}
}