jS从样式表取值的函数,IE中以currentStyle,firefox中defaultView来获取
DOM.style只能读到写在html中的样式值
获取样式值的函数
function returnStyle(obj,styleName){
var myObj = typeof obj =="string" ? document.getElementById(obj) : obj;
if(document.all){
return eval("myObj.currentStyle."+ styleName);
} else {
returneval("document.defaultView.getComputedStyle(myObj,null)." +styleName);
}
}