function utf8(wide)
{
	var c, s;
	var enc = "";
	var i = 0;
	while(i<wide.length)
	{
		c= wide.charCodeAt(i++);
		if (c>=0xDC00 && c<0xE000) continue;
		if (c>=0xD800 && c<0xDC00)
		{
			if (i>=wide.length) continue;
			s= wide.charCodeAt(i++);
			if (s<0xDC00 || c>=0xDE00) continue;
			c= ((c-0xD800)<<10)+(s-0xDC00)+0x10000;
		}
		if (c<0x80)
			enc += String.fromCharCode(c);
		else if (c<0x800)
			enc += String.fromCharCode(0xC0+(c>>6),0x80+(c&0x3F));
		else if (c<0x10000)
			enc += String.fromCharCode(0xE0+(c>>12),0x80+(c>>6&0x3F),0x80+(c&0x3F));
		else enc += String.fromCharCode(0xF0+(c>>18),0x80+(c>>12&0x3F),0x80+(c>>6&0x3F),0x80+(c&0x3F));
	}
	return enc;
}

var hexchars = "0123456789ABCDEF";

function toHex(n)
{
	return hexchars.charAt(n>>4)+hexchars.charAt(n & 0xF);
}

var okURIchars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_ \"-";

function encodeURIComponentNew(s)
{
	if(s==null || s.length<=0) return s;  
	var s = utf8(s);  
	var c;  
	var enc = "";  
	for (var i= 0; i<s.length; i++)
	{
		if (okURIchars.indexOf(s.charAt(i))==-1)
			enc += "%"+toHex(s.charCodeAt(i));
		else
			enc += s.charAt(i);
	}  return enc;
}

function getQueryString(url) { 
	url += ''; 
	var arrURLPart = new Array(); 
	arrURLPart = url.split("?"); 
	if (arrURLPart[1]) { 
		queryString = arrURLPart[1].split("=");
		if (queryString[1]) {
			return queryString[0] + "=" + encodeURIComponentNew(queryString[1]);
		} else {
			return arrURLPart[1];
		}		
	} else { 
		return ""; 
	}
}