BT_Functions=function(){};var $BT_FN=BT_Functions;BT_Functions.changeTextSize=function(a){if(a>0){$BT_CTL._intCurrentTextSize=($BT_CTL._intCurrentTextSize*$BT_CTL._dblTextIncreaseRatio)}else{$BT_CTL._intCurrentTextSize=($BT_CTL._intCurrentTextSize/$BT_CTL._dblTextIncreaseRatio)}$BT_FN.changeTextSizeOnChildElements($get("mainOuter"),a)};BT_Functions.changeTextSizeOnChildElements=function(e,d){for(var b=0,a=e.childNodes.length;b<a;b++){var c=e.childNodes[b];if(c.className){if(Sys.UI.DomElement.containsCssClass(c,"sizeable")){c.style.fontSize=$BT_CTL._intCurrentTextSize+"px"}}$BT_FN.changeTextSizeOnChildElements(c,d)}};BT_Functions.findParentElementOfType=function(a,b){if(!a){return null}b=b.toUpperCase();var c=false;var d=true;while(!c&&d){if(!a.tagName){d=false}else{if(a.tagName.toUpperCase()==b){c=true}else{if(a.parentNode){a=a.parentNode}else{d=false}}}}if(!c){a=null}return a};