/* Javascript tools
 * Author: Kyle Winfree and Deborah Lee Soltesz
 * For Moon-Cal.org, April 2006
 */


/* IE png bug fix by Bob Osola, thanks Bob!
 * http://homepage.ntlworld.com/bobosola/index.htm
 * All pages to use the bug fix must have:
 * <script language="Javascript">
 * 	window.attachEvent("onload", correctPNG);
 * </script>
 */

function correctPNG() // correctly handle PNG transparency in Win IE 5.5 & 6.
{
   var arVersion = navigator.appVersion.split("MSIE")
   var version = parseFloat(arVersion[1])
   if ((version >= 5.5) && (document.body.filters)) 
   {
      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
         }
      }
   }    
}

/* Begin USGS Product */

function popUpWindow (url, width, height) {
if (window["POP"] && window["POP"].closed == false) {
	POP = window["POP"] ;
	if (ns4) {
		POP.close() ;
	}
	else {
		POP.resizeTo (width + 30, height + 50) ;
	}
}
POP = open(url,"POP","toolbar=0,location=0,status=0,menubar=0,scrollbars=0,resizable=1,width=" + (width + 20) + ",height=" + (height + 20));
POP.focus() ;
}

function popUpWindowScrolling (url, width, height) {
if (window["POPs"] && window["POPs"].closed == false) {
	POPs = window["POPs"] ;
	if (ns4) {
		POP.close() ;
	}
	else {
		POPs.resizeTo (width + 30, height + 50) ;
	}
}
POPs = open(url,"POPs","toolbar=0,location=0,status=0,menubar=0,scrollbars=1,resizable=1,width=" + (width + 20) + ",height=" + (height + 20));
POPs.focus() ;
}

function cleanUpPopUpWindow() {
	if (window["POP"] && window["POP"].closed == false) {
		POP = window["POP"] ;
		POP.close() ;
	}
}