function IsNumber(strvalue)
{
	if(strvalue.length<2)
	{
		return false;
	}
	for(var i = 0; i < strvalue.length; i++) 
	{
        var chr = strvalue.substr(i,1);
        if(chr < '0' || chr > '9') 
		{            
            return false;
		}
	}
    return true;   
}
function IsNumber_no(strvalue)
{
	for(var i = 0; i < strvalue.length; i++) 
	{
        var chr = strvalue.substr(i,1);
        if(chr < '0' || chr > '9') 
		{            
            return false;
		}
	}
    return true;   
}
function FormatNumber(price,num)
{
	var str = new Array();
	price = String(price);
	for(var i=1;i<=price.length;i++)
	{
		if(i%num) str[price.length-i] = price.charAt(price.length-i);
		else str[price.length-i] =','+price.charAt(price.length-i);
	}
	return str.join('').replace(/^,/,'')+'¿ø';
}
function na_restore_img_src(name, nsdoc)
{
  var img = eval((navigator.appName.indexOf('Netscape', 0) != -1) ? nsdoc+'.'+name : 'document.all.'+name);
  if (name == '')
return;
  if (img && img.altsrc) {
img.src= img.altsrc;
img.altsrc = null;
  } 
}

function na_preload_img()
{ 
  var img_list = na_preload_img.arguments;
  if (document.preloadlist == null) 
document.preloadlist = new Array();
  var top = document.preloadlist.length;
  for (var i=0; i < img_list.length; i++) {
document.preloadlist[top+i] = new Image;
document.preloadlist[top+i].src = img_list[i+1];
  } 
}

function na_change_img_src(name, nsdoc, rpath, preload)
{ 
  var img = eval((navigator.appName.indexOf('Netscape', 0) != -1) ? nsdoc+'.'+name : 'document.all.'+name);
  if (name == '')
return;
  if (img) {
img.altsrc = img.src;
img.src= rpath;
  } 
}
function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}
function zippop(fo)
{	MM_openBrWindow("../member/findzip1.php?form="+fo,"zip","width=435,height=280,top=100,left=100,scrollbars=yes");	}