function popupCenter(pageURL,title,w,h) {
var left = (screen.width/2)-(w/2);
var top = (screen.height/2)-(h/2);
var targetWin = window.open (pageURL, title, 'toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes, resizable=no, copyhistory=no, width='+w+', height='+h+', top='+top+', left='+left);
}

function newImg(imgName, imgObjName) {
   if (ready) document.images[imgName].src=eval(imgObjName + ".src");
   return true;
}

function chgtxt(obj,linkid,linkcolor) {
	if(document.getElementById) {
		document.getElementById(linkid).style.color=linkcolor
	}
}

function showLayer(layerName) {
document.getElementById(layerName).style.visibility="visible"; 
}

function hideLayer(layerName) { 
document.getElementById(layerName).style.visibility="hidden";
}

function popup(msg,bak){
var content="<TABLE  WIDTH=150 BORDER=0 CELLPADDING=0 CELLSPACING=0><TD ALIGN=left style='padding-left: 4px'>"+msg+"</TD></TABLE>";
yyy=Yoffset;
 if(ns4){skn.document.write(content);skn.document.close();skn.visibility="visible"}
 if(ns6){document.getElementById("alta").innerHTML=content;skn.display=''}
 if(ie4){document.all("alta").innerHTML=content;skn.display=''}
}

function get_mouse(e){
var x=(ns4||ns6)?e.pageX:event.x+document.body.scrollLeft;
skn.left=x+Xoffset;
var y=(ns4||ns6)?e.pageY:event.y+document.body.scrollTop;
skn.top=y+yyy;
}

function kill(){
yyy=-1000;
if(ns4){skn.visibility="hidden";}
else if (ns6||ie4)
skn.display="none"
}