Web Front-endHTML TutorialThe problem with iframeset nesting: one layer of iframeset can be expanded and closed, but adding another layer cannot_html/css_WEB-ITnose
First code:
<html><head></head><FRAMESET rows="90,*" frameSpacing=0 frameBorder=no border=0 id=index> <FRAME id=topFrame name=topFrame src="../index/admin_top.jsp" noResize scrolling=no> <FRAMESET border=0 frameSpacing=0 id=colsIndex frameBorder=no cols=250,11,*> <FRAME marginheight= "0" marginwidth= "0" id=leftFrame name=leftFrame src="../index/left.jsp" noResize scrolling=no> <FRAME src="../index/middle.jsp" name=middleFrame scrolling=no noResize id=middleFrame> <FRAMESET border=0 frameSpacing=0 id=colsIndexSon frameBorder=no rows=250,*> <FRAME id=selectFrame name=selectFrame marginheight= "1" marginwidth= "1" src="../index/select.jsp" scrolling=no> <FRAME marginheight= "1" marginwidth= "1" id=mainFrame name=mainFrame src="../jump.do?type=city_city" scrolling=no> </FRAMESET> </FRAMESET></FRAMESET> <body></body></html>
How can I click on middleFrame to show and hide leftFrame?
The following JS is OK when there is only one iframeset, but after adding colsIndexSon it has no effect
function isShowNav(){alert(window.parent.colsIndex.cols); if(window.parent.colsIndex.cols == "250,11,*"){ window.parent.colsIndex.cols = "0,11,*"; }else{ window.parent.colsIndex.cols = "250,11,*"; }} Reply to the discussion (solution)
To add a layer, you need to add a parent
such as window.parent.parent
With your structure, there is no problem in operating colsIndex frameset from middleFrame. I have tested it here. However, it cannot be used by non-IE browsers because colsIndex cannot be obtained that way
function isShowNav() { var colsIndex = parent.document.getElementById('colsIndex'); alert(colsIndex.cols); if (colsIndex.cols == "250,11,*") { colsIndex.cols = "0,11,*"; } else { colsIndex.cols = "250,11,*"; } } 
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