IE(不兼容FireFox):
if(parent.myFrame.cols == "199,7,*") {
parent.myFrame.cols="0,7,*";
document.getElementById("ImgArrow").src="data:images/switch_right.gif";
document.getElementById("ImgArrow").alt="打开左侧导航栏";
} else {
parent.myFrame.cols="199,7,*";
document.getElementById("ImgArrow").src="data:images/switch_left.gif";
document.getElementById("ImgArrow").alt="隐藏左侧导航栏";
}
二者都兼容:
if(window.parent.document.getElementById("myFrame").cols == "199,7,*") {
window.parent.document.getElementById("myFrame").cols ="0,7,*";
document.getElementById("ImgArrow").src="data:images/switch_right.gif";
document.getElementById("ImgArrow").alt="打开左侧导航栏";
} else {
window.parent.document.getElementById("myFrame").cols="199,7,*";
document.getElementById("ImgArrow").src="data:images/switch_left.gif";
document.getElementById("ImgArrow").alt="隐藏左侧导航栏";
}