var h1 = window.innerHeight + window.scrollMaxY;//firefox有效  和起来高度等于页面高度
var h2 = document.documentElement.clientHeight;//ie firefox都有效 判断整个显示区域高度
var h3 = window.innerHeight; //firefox有效 判断窗口显示区域高
var h7 = self.innerHeight;  //firefox有效度 同上
var h4 = document.body.clientHeight; //ie firefox都有效但结果不同 IE取值总高度，FF取值滚动条长度
var h5 = document.body.scrollHeight; //ie firefox都有效但结果不同 IE取值总高度，FF取值滚动条长度
var h6 = document.body.offsetHeight; //ie firefox都有效但结果不同 IE取值总高度，FF取值滚动条长度
var h8 = window.scrollMaxY; //firefox有效 判断Y轴滚动条滚动距离
if(h2<h4){
document.writeln("<div style=\"clear:both;float:left; position:absolute; width:100%; height:24px;top:"+h4+"px;  left:0;  background:#2c2828; color:#b7b7b7; font-family:Arial, Helvetica, sans-serif; font-size:9px;\"><p style=\"margin-left:38px;\">Copyright by ZESTFUL 2007-2009.Add:504 Room,South block,Tongye building,No.7008,Beihuan road,Shenzhen,GuangDong province,China. <\/p><\/div>")
} else { 
document.writeln("<div style=\'clear:both;float:left; position:absolute; width:100%; height:24px; top:100%; left:0; background:#2c2828;color:#b7b7b7;margin-top:-24px;font-family:Arial,Helvetica,sans-serif;font-size:9px;\'><p style=\'margin-left:38px;\'>Copyright by ZESTFUL 2007-2009.Add:504 Room,South block,Tongye building,No.7008,Beihuan road,Shenzhen,GuangDong province,China.<\/p><\/div>");
}