var arVersion = navigator.appVersion.split("MSIE")
var version = parseFloat(arVersion[1])

function fixPNG(myImage)
{
    if ((version >= 5.5) && (version < 7) && (document.body.filters))
    {
       var imgID = (myImage.id) ? "id='" + myImage.id + "' " : ""
	   var imgClass = (myImage.className) ? "class='" + myImage.className + "' " : ""
	   var imgTitle = (myImage.title) ?
		             "title='" + myImage.title  + "' " : "title='" + myImage.alt + "' "
	   var imgStyle = "display:inline-block;" + myImage.style.cssText
	   var strNewHTML = "<span " + imgID + imgClass + imgTitle
                  + " style=\"" + "width:" + myImage.width
                  + "px; height:" + myImage.height
                  + "px;" + imgStyle + ";"
                  + "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
                  + "(src=\'" + myImage.src + "\', sizingMethod='scale');\"></span>"
	   myImage.outerHTML = strNewHTML
    }
}


function HideContent(d) {
if(d.length < 1) { return; }
document.getElementById(d).style.display = "none";
}

function ShowContent(d) {
if(d.length < 1) { return; }
document.getElementById(d).style.display = "block";
}

function WindChill(Temperature, Windspeed) {
	var result
	if (Windspeed == null || Temperature == null) {
		return null;
	} else {
		var s1 = (Temperature * 9 / 5) - 59.4;
		var s2 = (0.474 + (0.2388 * Math.sqrt(Windspeed)) - (0.0124* Windspeed));
		result = RoundDigits(((91.4 + (s1 * s2)) - 32) * 5 / 9, 1);
		// Round to 1 decimal place
		if (result > Temperature) result = Temperature;
		return result;
	}
}

function textCounter(field, countfield, maxlimit) {
if (field.value.length > maxlimit) // if too long...trim it!
field.value = field.value.substring(0, maxlimit);
// otherwise, update 'characters left' counter
else
countfield.value = maxlimit - field.value.length;
}