function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

/*
 * Adjust class style properties
 * Paramenters:
 *	clazz	CSS selector id
 *	style	CSS property name
 *	value	valid value for CSS property
 */
function setClassStyle( clazz, style, value) {
	if (document.styleSheets) {
		for( var styleSheetNo = 0; styleSheetNo < document.styleSheets.length; styleSheetNo++ ) {
			var styleSheet = document.styleSheets[styleSheetNo];
			if (styleSheet.cssRules) {
				var rules = styleSheet.cssRules;
			} else if (styleSheet.rules) {
				var rules = styleSheet.rules;
			}

			if (!rules) return; // err ???
			for ( var rule = 0; rule < rules.length; rule++) {
				if ( rules[rule].selectorText == clazz) {
					rules[rule].style[style] = value;
				}
			}
		}
	} else  {
		// No stylesheet
		var all = document.getElementsByTagName("*");
		if (all.length == 0)
			all = document.all;

		for ( var element = 0; element < all.length; element++) {
			if ( all[element].className == clazz.substr(1)) {
				all[element].style[style] = value;
			}
		}
	}
}

/* http://www.oreillynet.com/pub/a/javascript/excerpt/JSDHTMLCkbk_chap5/index5.html */
/*
 * Cross-browser function to determine the computed style of the element
 */
function getElementStyle(elemID, IEStyleProp, CSSStyleProp) {
	var elem = document.getElementById(elemID);
	if (elem.currentStyle) {
		return elem.currentStyle[IEStyleProp];
	} else if (window.getComputedStyle) {
		var compStyle = window.getComputedStyle(elem, "");
		return compStyle.getPropertyValue(CSSStyleProp);
	}
	return "";
}