salesforce 获得pop up window =>iframe=>select（单选和多选）的值

var selectTags=document.getElementById('theIframe').contentWindow.document.getElementsByTagName('select');

var selectedVal="";

for(var i=0,j=selectTags.length;i<j;i++){

if((tagName == "AccountSpecialization" && /\w*AccountSpecialization$/.test(selectTags[i].id))

||(tagName == "AccountReferralValue" && /\w*AccountReferralValue$/.test(selectTags[i].id))){

if(!(j$(selectTags[i]).text()==="--None--")){

selectedVal += selectTags[i].value + ';';

}

}

if(tagName == "AccountChecklistItems" && /\w*AccountChecklistItems_selected$/.test(selectTags[i].id)){

for (var k = 0; k < selectTags[i].childNodes.length; k++) {

var obj = selectTags[i].childNodes[k];

if (obj && obj.nodeType==1 && obj.tagName.toUpperCase() == "OPTION"){

selectedVal += j$(obj).text() + ';';

}

}

}

}

selectedVal = selectedVal.substring(0,selectedVal.length - 1);

return selectedVal;