function Debug (wname){
	this.wnd=null;
	this.wname=(wname=="")?"Debug Window":wname;
	this.write = function (s){
		this.open();
		this.wnd.document.write(s);
	}
	this.writeln = function (s){
		this.write(s+"<br>");
	}
	this.open = function(){
		if(this.wnd==null)
		   this.wnd=open("about:blank",this.wname,"");
	}
}


var dbg=new Debug("DebugWindow");