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// load iframe and resize it |
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// written by Dobrica Pavlinusic <dpavlin@rot13.org> |
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// based on great hints from Robert Avilov |
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|
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var iframe_id_cache = Array(); |
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|
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function iframe_id(name) { |
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if (! iframe_id_cache[name]) { |
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iframe_id_cache[name] = self.document.getElementById(name); |
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} |
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return iframe_id_cache[name]; |
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} |
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|
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|
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function iframe_doc(name) { |
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if (iframe_id(name).contentDocument) return iframe_id(name).contentDocument; |
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if (iframe_id(name).contentWindow) { |
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try { |
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return iframe_id(name).contentWindow.document; |
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} catch (e) {}; |
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} |
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if (iframe_id(name).document) return iframe_id(name).document; |
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return null; |
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} |
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|
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function iframe_height(name) { |
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|
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var doc = iframe_doc(name); |
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|
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if (doc.body) { |
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var h = -1; |
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var h1 = -1; |
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|
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if (doc.body.scrollHeight) { |
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h1 = parseInt(doc.body.scrollHeight) || -1; |
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//alert(name+" scrollHeight "+h1); |
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if (h1 > h) h = h1; |
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} |
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if (doc.body.clientHeight) { |
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h1 = parseInt(doc.body.clientHeight) || -1; |
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//alert(name+" clientHeight "+h1); |
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if (h1 > h) h = h1; |
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} |
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|
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/* |
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var elm = document.getElementById(name); |
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if (elm) { |
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elm.style.height = 'auto'; |
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h1 = elm.offsetHeight; |
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alert(name+" offsetHeight "+h1); |
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if (h1 > h) h = h1; |
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} |
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*/ |
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|
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return h + 5; |
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|
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} |
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return 50; |
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} |
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|
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function iframe_resize(name) { |
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|
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var el=iframe_id(name); |
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|
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if (! el || ! el.src) return; |
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|
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el.style.height = String(iframe_height(name)+'px'); |
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|
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// hide wait message |
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var w_el = iframe_id(name.replace(/^i/,"w")); |
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if (w_el) w_el.style.display = 'none'; |
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} |
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|
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function iframe_load(name,url) { |
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|
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if (! name || ! url) return false; |
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|
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var el=iframe_id(name); |
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|
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// is there src, and is src same? |
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if (el.src) { |
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var old_src = el.src; |
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// remove query |
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var q = el.src.indexOf("?"); |
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if (q > 0) old_src = old_src.substr(0,q); |
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// now compare just last parts |
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old_src = old_src.substr(old_src.length - url.length); |
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//alert(old_src+" == "+url+" q="+q); |
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if (old_src == url) return false; |
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} |
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|
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// if iframe name if i_something, show waiting message called w_something |
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var w_el = iframe_id(name.replace(/^i/,"w")); |
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if (w_el) w_el.style.display = ''; |
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|
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if (location.search) url += location.search; |
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|
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el.style.height = '0px'; |
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el.src = url; |
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|
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return false; |
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} |
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