function change_image(img_name,img_src) {
	document[img_name].src=img_src;
}
// to page top
var Mac = navigator.appVersion.indexOf('Mac',0) != -1;
var Win = navigator.appVersion.indexOf('Win',0) != -1;
var IE  = navigator.appName.indexOf("Microsoft Internet Explorer",0) != -1;
var NN  = navigator.appName.indexOf("Netscape",0) != -1;
var Moz = navigator.userAgent.indexOf("Gecko") != -1;
var Vmajor = parseInt(navigator.appVersion);
var Vminor = parseFloat(navigator.appVersion);

var MacIE4 = ((Mac && navigator.appVersion.indexOf('MSIE 4.',0) != -1));
var MacIE3 = ((Mac && navigator.appVersion.indexOf('MSIE 3.',0) != -1));


function setObj(id) {
	if (document.all) {
		return document.all(id);
	} else if (document.getElementById) {
		return document.getElementById(id);
	} else if (document.layers) {
		return document.layers[id];
	}
	return false;
}

function gtScL01() {
	if ((navigator.appName.indexOf("Microsoft Internet Explorer",0) != -1)) {
		return document.body.scrollLeft;
	} else if (window.pageXOffset) {
		return window.pageXOffset;
	} else {
		return 0;
	}
}

function gtScT01() {
	if ((navigator.appName.indexOf("Microsoft Internet Explorer",0) != -1)) {
		return document.body.scrollTop;
	} else if (window.pageYOffset) {
		return window.pageYOffset;
	} else {
		return 0;
	}
}

var pgScTim01;
function pgSc01(toX,toY,frms,cuX,cuY) {
	if (pgScTim01) clearTimeout(pgScTim01);
	if (!toX || toX < 0) toX = 0;
	if (!toY || toY < 0) toY = 0;
	if (!cuX) cuX = 0 + gtScL01();
	if (!cuY) cuY = 0 + gtScT01();
	if (!frms) frms = 6;

	if (toY > cuY && toY > (gtAncPo01('end','enddiv').y) - gtInSz01().height)
		toY = (gtAncPo01('end','enddiv').y - gtInSz01().height) + 1;
		cuX += (toX - gtScL01()) / frms; if (cuX < 0) cuX = 0;
		cuY += (toY - gtScT01()) / frms;  if (cuY < 0) cuY = 0;
		var posX = Math.floor(cuX);
		var posY = Math.floor(cuY);
		window.scrollTo(posX, posY);

	if (posX != toX || posY != toY) {
		pgScTim01 = setTimeout("pgSc01("+toX+","+toY+","+frms+","+cuX+","+cuY+")",16);
	}
	//alert(pgScTim01);
}

function pgTopScl01() {	
	pgSc01(0,0,5);
}

function gtInSz01() {
	var obj = new Object();
	if (document.all || (document.getElementById && IE)) {
		obj.width = document.body.clientWidth;
		obj.height = document.body.clientHeight;
	} else if (document.layers || (document.getElementById && Moz)) {
		obj.width = window.innerWidth;
		obj.height = window.innerHeight;
	}
	return obj;
}

function gtAncPo01(elementname, elementid) {
 var obj = setObj(elementname);
 var objnew = new Object();
 var objtmp;

 if (document.getElementById && IE) {
  objtmp = obj;
  objnew.x = objtmp.offsetLeft;
  objnew.y = objtmp.offsetTop;
  while ((objtmp = objtmp.offsetParent) != null) {
   objnew.x += objtmp.offsetLeft;
   objnew.y += objtmp.offsetTop;
  }
 } else if (document.getElementById && Moz) {
//  objnew.x = document.getElementsByTagName("A").namedItem(elementname).offsetLeft;
//  objnew.y = document.getElementsByTagName("A").namedItem(elementname).offsetTop;
  objnew.x = document.getElementsByTagName("DIV").namedItem(elementid).offsetLeft;
  objnew.y = document.getElementsByTagName("DIV").namedItem(elementid).offsetTop;
 } else if (document.all) {
  objtmp = obj;
  objnew.x = objtmp.offsetLeft;
  objnew.y = objtmp.offsetTop;
  while ((objtmp = objtmp.offsetParent) != null) {
   objnew.x += objtmp.offsetLeft;
   objnew.y += objtmp.offsetTop;
  }
 } else if (document.layers) {
  objnew.x = document.anchors[elementname].x;
  objnew.y = document.anchors[elementname].y;
 } else {
  objnew.x = 0;
  objnew.y = 0;
 }
 return objnew;
}