function imgOn(imgName) {	
	
	if (document.images) {
	    document.images[imgName].src = eval(imgName + "on.src");
	}
	
	
}

function imgOff(imgName) {
		
	if (document.images) {
	    document.images[imgName].src = eval(imgName + "off.src");
	}

}

function txtOn(txt, imgName)
{
	document.getElementById(TipLayer).innerHTML=txt;
	document.getElementById(TipLayer).style.visibility="visible";
	var x_abs=getDim(document.getElementById(imgName)).x;
	var y_abs=getDim(document.getElementById(imgName)).y;
	document.getElementById(TipLayer).style.left=x_abs+150;
	document.getElementById(TipLayer).style.top=y_abs+2;
	
	
}

function txtOff()
{
	document.getElementById(TipLayer).innerHTML='';
	document.getElementById(TipLayer).style.visibility="hidden";
}

function getDim(el){
	for (var lx=0,ly=0;el!=null;
		lx+=el.offsetLeft,ly+=el.offsetTop,el=el.offsetParent);
	return {x:lx,y:ly}
}

function LayerContentExchange(name1,name2) {
 var obj = document.getElementById(name1); 
 var dat = document.getElementById(name2);

 obj.innerHTML = dat.innerHTML;
}

function open_window(url,width,height){
	mywin = window.open(url,"map",'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,left=80,width=' +width+ ',height=' +height+ ',top=50')
}