(function($){$.fn.fixedHeader=function(o){var s={adjustWidth:$.fixedHeader.calcWidth};if(o)$.extend(s,o);return this.each(function(){var table=$(this);var tId=this.id;var scrollBarWidth=$.fixedHeader.getScrollBarWidth();var IE6=$.browser.msie&&$.browser.version=='6.0';var bodyContainer=table.wrap('<div></div>').parent().attr('id',tId+"_body_container").css({width:s.width,height:s.height,overflow:'auto'});var tableContainer=bodyContainer.wrap('<div></div>').parent().attr('id',tId+'_table_container').css('position','relative');var position=table.position();var headerContainer=$(document.createElement('div')).attr('id',tId+'_header_container').css({width:bodyContainer.innerWidth()-scrollBarWidth,height:table.find('thead').outerHeight(),overflow:'hidden',top:position.top,left:position.left}).prependTo(tableContainer);var headerTable=table.clone(true).find('tbody').remove().end().attr('id',tId+"_header").addClass(s.tableClass||table[0].className).css({'table-layout':'fixed',position:'absolute',top:0,left:0}).append(table.find('thead').clone(true)).appendTo(headerContainer);var headThs=headerTable.find('th');table.find('th').each(function(i){headThs.eq(i).css('width',s.adjustWidth(this));})
var selects=IE6?table.find("select"):null;bodyContainer.scroll(function(){if(IE6&&selects.size()>0){selects.each(function(i){this.style.visibility=($(this).offset().top-bodyContainer.offset().top)<=table.find("thead").outerHeight()+10?'hidden':'visible';});}
headerTable.css({left:'-'+$(this).scrollLeft()+'px'});})
headerContainer.css({'position':'absolute','top':0});});}
$.fixedHeader={calcWidth:function(th){var w=$(th).width();var paddingLeft=$.fixedHeader.getComputedStyleInPx(th,'paddingLeft');var paddingRight=$.fixedHeader.getComputedStyleInPx(th,'paddingRight');var borderWidth=$.fixedHeader.getComputedStyleInPx(th,'borderRightWidth');if($.browser.msie)w=w+borderWidth;if($.browser.opera)w=w+borderWidth;if($.browser.safari)w=w+paddingLeft+paddingRight+borderWidth*2;if($.browser.mozilla&&parseFloat($.browser.version)<=1.8)w=w+borderWidth;return w;},getComputedStyleInPx:function(elem,style){var computedStyle=(typeof elem.currentStyle!='undefined')?elem.currentStyle:document.defaultView.getComputedStyle(elem,null);var val=computedStyle[style];val=val?parseInt(val.replace("px","")):0;return(!val||val=='NaN')?0:val;},getScrollBarWidth:function(){if(!$.fixedHeader.scrollBarWidth){var inner=$(document.createElement('p')).css({width:'100%',height:'100%'});var outer=$(document.createElement('div')).css({position:'absolute',top:'0px',left:'0px',visibility:'hidden',width:'200px',height:'150px',overflow:'hidden'}).append(inner).appendTo(document.body);var w1=inner[0].offsetWidth;outer[0].style.overflow='scroll';var w2=inner[0].offsetWidth;if(w1==w2)w2=outer[0].clientWidth;document.body.removeChild(outer[0]);$.fixedHeader.scrollBarWidth=(w1-w2);}
return $.fixedHeader.scrollBarWidth;}}})(jQuery);