Work out path

getAbsolutePath

var getAbsolutePath=function(path,relativeto){
	if(!relativeto) relativeto=window.location.href;
	if(!relativeto) return path;
	//remove ? and # from relative to
	if(~relativeto.indexOf("?")){
		relativeto=relativeto.substr(0,relativeto.indexOf("?"));
	}else if(~relativeto.indexOf("#")){
		relativeto=relativeto.substr(0,relativeto.indexOf("#"));
	}	
	var pathParts=path.split("/");
	if(~pathParts[0].indexOf(":")) return path;
	var relativeParts=relativeto.split("/");
	var domain="";
	if(~relativeParts[0].indexOf(":")){
		domain+=relativeParts.shift()+"/"+relativeParts.shift()+"/"+relativeParts.shift()+"/";
	}
	if(pathParts[0]==""){
		pathParts.shift();
		return domain+pathParts.join("/")
	}
	relativeParts.pop();
	for(var i=0;i<pathParts.length;i++){
		var part=pathParts[i];
		if(part==".."){
			relativeParts.pop();
		}else if(part!="."){
			relativeParts.push(part);
		}
	}
	return domain+relativeParts.join("/");
}