window.open & opener
parent.html<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312" /><title>无标题文档</title><script>function winOpen(){window.open('son.html');//window.close();}</script></head><body><form name="f1" method="post" action=""><input name="username" id="username" value=""/><input name="cardnum" id="cardnum" value=""/><input type="button" value="button"/></form></body></html>
son.html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312" /><title>无标题文档</title><scriptlanguage="JavaScript" type="text/javascript">/** *取父页面上的值 */function $(str){var parents=window.opener;//父页面对象var v= parents.document.getElementById(str);/*还有什么方法得到父页面的表单值？*///alert(v);return v;}/** *取到子面上的对象 */function son(str){var o=document.getElementById(str);return o;}/** *给子页面设置数据 */function sv(s,t){//alert(s); if($(t)&&son(s))/*防止页面根本就没有input框*/ son(s).value=$(t).value;}/** *设置 */function doSetVal(){ //alert("hello");sv("username","username");sv("cardnum","cardnum");//sv("","");}</script></head><body ><form name="form1" action="" method="post"><input type="text" name="username" id="username" value=""/><input type="text" name="cardnum" id="cardnum" value=""/></form></body></html>
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