var Builder={NODEMAP:{AREA:'map',CAPTION:'table',COL:'table',COLGROUP:'table',LEGEND:'fieldset',OPTGROUP:'select',OPTION:'select',PARAM:'object',TBODY:'table',TD:'table',TFOOT:'table',TH:'table',THEAD:'table',TR:'table'},node:function(elementName){elementName=elementName.toUpperCase();var parentTag=this.NODEMAP[elementName]||'div';var parentElement=document.createElement(parentTag);try{parentElement.innerHTML="<"+elementName+"></"+elementName+">";}catch(e){}var element=parentElement.firstChild||null;if(element&&(element.tagName!=elementName))element=element.getElementsByTagName(elementName)[0];if(!element)element=document.createElement(elementName);if(!element)return;if(arguments[1])if(this._isStringOrNumber(arguments[1])||(arguments[1]instanceof Array)){this._children(element,arguments[1]);}else{var attrs=this._attributes(arguments[1]);if(attrs.length){try{parentElement.innerHTML="<"+elementName+" "+attrs+"></"+elementName+">";}catch(e){}element=parentElement.firstChild||null;if(!element){element=document.createElement(elementName);for(attr in arguments[1])element[attr=='class'?'className':attr]=arguments[1][attr];}if(element.tagName!=elementName)element=parentElement.getElementsByTagName(elementName)[0];}}if(arguments[2])this._children(element,arguments[2]);return element;},_text:function(text){return document.createTextNode(text);},_attributes:function(attributes){var attrs=[];for(attribute in attributes)attrs.push((attribute=='className'?'class':attribute)+'="'+attributes[attribute].toString().escapeHTML()+'"');return attrs.join(" ");},_children:function(element,children){if(typeof children=='object'){children.flatten().each(function(e){if(typeof e=='object')element.appendChild(e);else if(Builder._isStringOrNumber(e))element.appendChild(Builder._text(e));});}else if(Builder._isStringOrNumber(children))element.appendChild(Builder._text(children));},_isStringOrNumber:function(param){return(typeof param=='string'||typeof param=='number');}}