function substring(str,len){
	
		if (str == null || str == undefined)
		{
			return "";
		}
		
		if (len != null && len != undefined )
		{
			if (str.length < len)
			{
				return str
			}
			else
			{
				return str.substring(0,len)+"...";
			}
		}
	  	return str;
	}

	function remString(str) {
//		var remStr = new Array( '<br>', '<hr>' );
		var remStr = new Array( '<(br|hr|b|/b|/font|strong|/strong)>', '<font(.[^>]{0,})>' );
		for ( i=0; i< remStr.length; i++ ) {
			while ( str.match( RegExp(remStr[i], "i") ) ) {
				str = str.replace( RegExp(remStr[i], "i"), "" );
			}
		}
		return str;
	}

	function outString(str,len){
		var outStr = substring(str,len);
		document.writeln(outStr);
	}

	function unsoTrucker(param){
		var url = '/truck/trucker.html?' + param;
		new Ajax.Request(url, {
			method: "get",
			requestHeaders: ['If-Modified-Since','Wed, 15 Nov 1995 00:00:00 GMT']
		});
		return
	}