LayoutManager=function(headerId,contentId){this.headerTable=$(headerId);this.contentTable=$(contentId);this.headerDiv=(this.headerTable)?this.headerTable.parentNode:null;this.contentDiv=this.contentTable.parentNode;Event.observe(this.contentDiv,"scroll",this.scrollHandler.bindAsEventListener(this));}
LayoutManager.SCROLL_WIDTH=17;LayoutManager.STYLE_CONTENTTD_BORDER=1;LayoutManager.STYLE_CONTENTTD_PADDING=4;LayoutManager.prototype.widthSynchronization=function(){if(Prototype.Browser.IE&&this.contentDiv&&this.contentTable&&this.getScrollWidth()){if(this.contentTable.offsetWidth&&((this.contentTable.offsetWidth<=this.contentDiv.clientWidth))){this.contentTable.style.width=this.contentDiv.clientWidth+"px";if(this.headerTable){this.headerTable.style.width=this.contentDiv.offsetWidth+"px";}
this.contentDiv.style.overflowX='hidden';}}else{this.contentTable.style.width="100%";}
var rows=this.contentTable.tBodies[0].rows;if(rows&&rows[0]){var contentCells=rows[0].cells;if(!this.headerTable||!this.headerTable.tHead)
return;var headerCells=this.headerTable.tHead.rows[0].cells;var width;for(var i=0;i<contentCells.length;i++){var curCell=contentCells[i];var headCell=headerCells[i];width=LayoutManager.calculateWidth(curCell,headCell).colWidth;if(i==contentCells.length-1){width=width+this.getScrollWidth();}
headCell.firstChild.style.width=width+"px";headCell.style.width=width+"px";}}else{if(this.headerTable&&this.headerTable.tHead){this.headerTable.style.width="100%";}}}
LayoutManager.prototype.getScrollWidth=function(){if(this.contentDiv.clientWidth!=0){return this.contentDiv.offsetWidth-this.contentDiv.clientWidth;}
return 0;}
LayoutManager.prototype.scrollHandler=function(){if(this.headerDiv){this.headerDiv.scrollLeft=this.contentDiv.scrollLeft;}}
LayoutManager.getHeaderWidth=function(visibleBox,realBox){return realBox.offsetWidth+(visibleBox.offsetWidth-visibleBox.clientWidth);}
LayoutManager.isIE=function(){return(/MSIE/.test(navigator.userAgent)&&!window.opera);}
LayoutManager.getElemXY=function(elem){var x=elem.offsetLeft;var y=elem.offsetTop;for(var parent=elem.offsetParent;parent;parent=parent.offsetParent){x+=parent.offsetLeft;y+=parent.offsetTop;}
return{left:x,top:y};}
LayoutManager.calculateWidth=function(srcElem,tgtElem){var srcElemBorderWidth=LayoutManager.getBorderWidth(srcElem,"lr");var srcElemPaddingWidth=LayoutManager.getPaddingWidth(srcElem,"lr");var srcElemMarginWidth=LayoutManager.getMarginWidth(srcElem,"lr");var tgtElemBorderWidth=LayoutManager.getBorderWidth(tgtElem,"lr");var tgtElemPaddingWidth=LayoutManager.getPaddingWidth(tgtElem,"lr");var tgtElemMarginWidth=LayoutManager.getMarginWidth(tgtElem,"lr");var srcWidth=srcElem.offsetWidth-srcElemBorderWidth-srcElemPaddingWidth-srcElemMarginWidth;var colWidth=srcWidth+(srcElemBorderWidth-tgtElemBorderWidth)
+(srcElemPaddingWidth-tgtElemPaddingWidth)
+(srcElemMarginWidth-tgtElemMarginWidth);colWidth=(colWidth>0)?colWidth:0;return{srcWidth:srcWidth,colWidth:colWidth};}
LayoutManager.getBorderWidth=function(el,side){return LayoutManager.getStyles(el,side,LayoutManager.borders);}
LayoutManager.getPaddingWidth=function(el,side){return LayoutManager.getStyles(el,side,LayoutManager.paddings);}
LayoutManager.getMarginWidth=function(el,side){return LayoutManager.getStyles(el,side,LayoutManager.margins);}
LayoutManager.getStyles=function(el,sides,styles){var val=0;for(var i=0,len=sides.length;i<len;i++){var w=parseInt(Element.getStyle(el,styles[sides.charAt(i)]),10);if(!isNaN(w))val+=w;}
return val;}
LayoutManager.borders={l:'border-left-width',r:'border-right-width',t:'border-top-width',b:'border-bottom-width'},LayoutManager.paddings={l:'padding-left',r:'padding-right',t:'padding-top',b:'padding-bottom'},LayoutManager.margins={l:'margin-left',r:'margin-right',t:'margin-top',b:'margin-bottom'}