js操作模态窗口及父子窗口间相互传值示例_javascript技巧

window.onload=function(){
var btn=document.getElementById("btn");
btn.onclick=function(){
var obj={
test:"张三传到子窗口",
win:window
};
var returnValue = window.showModalDialog("child.html",obj,"dialogLeft:100px;dialogTop:100px;dialogWidth:400px;dialogHeight:300px;resizable:yes");
if(returnValue != null){
document.getElementById("content").innerHTML = returnValue;
}
};
}








child.html
代码如下:






window.onload=function(){
//获取url的传参
var args = window.dialogArguments;
var win = args.win;//父窗口对象
var content=document.getElementById("content");
content.value=args.test;
var btn=document.getElementById("btn");
btn.onclick=function(){
//模态对话框将值
window.returnValue = content.value;
window.close();
}
}