function lib_bwcheck(){this.ver=navigator.appVersion;this.agent=navigator.userAgent;this.dom=document.getElementById?1:0;this.opera5=this.agent.indexOf("Opera 5")>-1;this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom && !this.opera5)?1:0;this.ie6=(this.ver.indexOf("MSIE 6")>-1 && this.dom && !this.opera5)?1:0;this.ie4=(document.all && !this.dom && !this.opera5)?1:0;this.ie=this.ie4||this.ie5||this.ie6;this.mac=this.agent.indexOf("Mac")>-1;this.ns6=(this.dom && parseInt(this.ver)>=5)?1:0;this.ns4=(document.layers && !this.dom)?1:0;this.bw=(this.ie6||this.ie5||this.ie4||this.ns4||this.ns6||this.opera5);return this;}
var bw=new lib_bwcheck();timSpeed = 50;contHeight = 100
function makeScrollObj(obj,nest){nest=(!nest) ? "":'document.'+nest+'.';this.el=bw.dom?document.getElementById(obj):bw.ie4?document.all[obj]:bw.ns4?eval(nest+'document.'+obj):0;this.css=bw.dom?document.getElementById(obj).style:bw.ie4?document.all[obj].style:bw.ns4?eval(nest+'document.'+obj):0;this.height=bw.ns4?this.css.document.height:this.el.offsetHeight;this.top=b_gettop;return this}
var px = bw.ns4||window.opera?"":"px";
function b_gettop(){var gleft=(bw.ns4 || bw.ns6)?parseInt(this.css.top):eval(this.css.pixelTop);return gleft;}