// JavaScript Document
var imgToggle = false;



// Correctly handle PNG transparency in Win IE 5.5 or higher.
// http://homepage.ntlworld.com/bobosola. Updated 02-March-2004
function correctPNG() {
   {
   for(var i=0; i<document.images.length; i++)
      {
	  var img = document.images[i]
	  var imgName = img.src.toUpperCase()
	  if (imgName.substring(imgName.length-3, imgName.length) == "PNG")
	     {
		 var imgID = (img.id) ? "id='" + img.id + "' " : ""
		 var imgClass = (img.className) ? "class='" + img.className + "' " : ""
		 var imgTitle = (img.title) ? "title='" + img.title + "' " : "title='" + img.alt + "' "
		 var imgStyle = "display:inline-block;" + img.style.cssText 
		 if (img.align == "left") imgStyle = "float:left;" + imgStyle
		 if (img.align == "right") imgStyle = "float:right;" + imgStyle
		 if (img.parentElement.href) imgStyle = "cursor:hand;" + imgStyle		
		 var strNewHTML = "<span " + imgID + imgClass + imgTitle
		 + " style=\"" + "width:" + img.width + "px; height:" + img.height + "px;" + imgStyle + ";"
	     + "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
		 + "(src=\'" + img.src + "\', sizingMethod='scale');\"></span>" 
		 img.outerHTML = strNewHTML
		 i = i-1
	     }
      }
   }
//document.window.attachEvent("onload", correctPNG);
}

function coShow(e)	{
	document.getElementById(e).style.visibility = "visible";
}

function coHide(e)	{
	document.getElementById(e).style.visibility = "hidden";
}

function takeMeHome()	{
	document.location = "http://www.michiganmethwatch.org/index.php";
}



//WORKAROUND FOR STUPID ROLLOVER EFFECT THAT MDCH WANTS
function fakeButton(e)	{
	if(imgToggle) {
		e.style.backgroundImage = "url(/images/blue_gradientFLIP.gif)";
		e.style.backgroundPosition = "top";
	}
}
function fakeButtonBack(e)	{
	if(imgToggle) {
		e.style.backgroundImage = "url(/images/blue_gradient.gif)";
		e.style.backgroundPosition = "bottom";
	}
}


//TEXT ONLY
function textOnly()	{
	sUrl = new String(location.href);
	if (sUrl.indexOf("?") > -1) {
		document.location = location.href + "&ht=1";	
	} else {
		document.location = location.href + "?ht=1";	
	}
}

var tgs = new Array( 'div','td','tr','span','a' );
var currentSize = 1;

function sizeMe(inc) {
	currentSize += inc;
	if (currentSize < 0.8) {
		currentSize = 0.8;	
	}
	if (currentSize > 1.15) {
		currentSize = 1.15;	
	}
	
	var daTags;
	
	for (i = 0; i < 4; i++) {
		daTags = document.body.getElementsByTagName( tgs[i] );
		for (j = 0; j < daTags.length; j++) {
			daTags[j].style.fontSize = currentSize + "em";	
			daTags[j].style.lineHeight = currentSize + 0.01 + "em";
		}
	}
}

function handleImages() {
	if(document.getElementById("regCss")) {
		imgToggle = true;	
	}
}