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];}} 
}
var isNav4, isNav6, isIE4;
function setBrowser(){
	if (navigator.appVersion.charAt(0) == "4"){
		if (navigator.appName.indexOf("Explorer") >= 0){
			isIE4 = true;
		}else{
			isNav4 = true;
		}
	}else if (navigator.appVersion.charAt(0) > "4"){
		isNav6 = true;
	}
}
function nav( divNum,divTot ){
	var id = 0;
	var display = "";
	var i = divTot;
	var j = divTot;
	
	while (i > 0){
		setIdProperty("sub" + i, "display", "none");
		setIdProperty("headp" + i, "display", "none");
		setIdProperty("head" + i, "display", "inline");	
		i--;
	}
	setIdProperty("sub" + divNum, "display", "block");
}
function navi( divNum,divTot ){
	var id = 0;
	var display = "";
	var i = divTot;
	var j = divTot;
	
	while (i > 0){
		setIdProperty("sub" + i, "display", "none");
		i--;
	}
	while (j > 0){
		if(j != divNum){
			setIdProperty("headi" + j, "display", "inline");
			setIdProperty("headpi" + j, "display", "none");			
		}else{
			setIdProperty("headpi" + divNum, "display", "inline");
			setIdProperty("headi" + divNum, "display", "none");			
		}
		j--;
	}		

	setIdProperty("sub" + divNum, "display", "block");	
}
function setIdProperty(id, property, value){
	if (isNav6){
		var styleObject = document.getElementById( id );
		if (styleObject != null){
			styleObject = styleObject.style;
			styleObject[ property ] = value;
		}
	} else if (isNav4){
		document[id][property] = value;
	} else if (isIE4){
		document.all[id].style[property] = value; 
	}
}