var WCH_Constructor=function(){if(!(document.all&&document.getElementById&&!window.opera&&navigator.userAgent.toLowerCase().indexOf("mac")==-1)){this.Apply=function(){};this.Discard=function(){};return}var _bIE55=false;var _bIE6=false;var _oRule=null;var _bSetup=true;var _oSelf=this;this.Apply=function(vLayer,vContainer,bResize){if(_bSetup)_Setup();if(_bIE55&&(oIframe=_Hider(vLayer,vContainer,bResize))){oIframe.style.visibility="visible"}else if(_oRule!=null){_oRule.style.visibility="hidden"}};this.Discard=function(vLayer,vContainer){if(_bIE55&&(oIframe=_Hider(vLayer,vContainer,false))){oIframe.style.visibility="hidden"}else if(_oRule!=null){_oRule.style.visibility="visible"}};function _Hider(vLayer,vContainer,bResize){var oLayer=_GetObj(vLayer);var oContainer=((oTmp=_GetObj(vContainer))?oTmp:document.getElementsByTagName("body")[0]);if(!oLayer||!oContainer)return;var oIframe=document.getElementById("WCHhider"+oLayer.id);if(!oIframe){var sFilter=(_bIE6)?"filter:progid:DXImageTransform.Microsoft.Alpha(style=0,opacity=0);":"";var zIndex=oLayer.style.zIndex;if(zIndex=="")zIndex=oLayer.currentStyle.zIndex;zIndex=parseInt(zIndex);if(isNaN(zIndex))return null;if(zIndex<2)return null;zIndex--;var sHiderID="WCHhider"+oLayer.id;oContainer.insertAdjacentHTML("afterBegin",'<iframe class="WCHiframe" src="javascript:false;" id="'+sHiderID+'" scroll="no" frameborder="0" style="position:absolute;visibility:hidden;'+sFilter+'border:0;top:0;left;0;width:0;height:0;background-color:#ccc;z-index:'+zIndex+';"></iframe>');oIframe=document.getElementById(sHiderID);_SetPos(oIframe,oLayer)}else if(bResize){_SetPos(oIframe,oLayer)}return oIframe};function _SetPos(oIframe,oLayer){oIframe.style.width=oLayer.offsetWidth+"px";oIframe.style.height=oLayer.offsetHeight+"px";oIframe.style.left=oLayer.offsetLeft+"px";oIframe.style.top=oLayer.offsetTop+"px"};function _GetObj(vObj){var oObj=null;switch(typeof(vObj)){case "object":oObj=vObj;break;case "string":oObj=document.getElementById(vObj);break}return oObj};function _Setup(){_bIE55=(typeof(document.body.contentEditable)!="undefined");_bIE6=(typeof(document.compatMode)!="undefined");if(!_bIE55){if(document.styleSheets.length==0)document.createStyleSheet();var oSheet=document.styleSheets[0];oSheet.addRule(".WCHhider","visibility:visible");_oRule=oSheet.rules(oSheet.rules.length-1)}_bSetup=false}};var WCH=new WCH_Constructor();