// JavaScript Document
var isIE=document.uniqueID;
function taconite_trim(str) {
    //skip leading and trailing whitespace
    //and return everything in between
    var x=str;
    x=x.replace(/^\s*(.*)/, "$1");
    x=x.replace(/(.*?)\s*$/, "$1");
    return x;
};
function XhtmlToDOMParser(xml){
    var xmlTagName=xml.tagName.toLowerCase();
    var contextNode=document.getElementById(xml.getAttribute("contextNodeID"));
    if (!contextNode) {
    	alert("Ajax error: no such element \"" + xml.getAttribute("contextNodeID") + "\"")
    } else {
	    this.startParsing = function(){
	    switch (xmlTagName) {
	        case "taconite-append-as-children":
	            getReplaceChildren(contextNode,xml,false);
	            break;
	        case "taconite-delete":
	            getDelete(contextNode,xml);
	            break;
	        case "taconite-append-as-first-child":
	            getAppendAsFirstChild(contextNode,xml);
	            break;                         
	        case "taconite-insert-after":
	            getInsertAfter(contextNode,xml);
	            break;
	        case "taconite-insert-before":
	            getInsertBefore(contextNode,xml);
	            break;                         
	        case "taconite-replace-children":
	            getReplaceChildren(contextNode,xml,true);
	            break;
	        case "taconite-replace":
	            getReplace(contextNode,xml);
	            break;                         
	        case "taconite-set-attributes":
	            xml.removeAttribute("contextNodeID");
	            xml.removeAttribute("parseInBrowser");
	            handleAttributes(contextNode,xml);
	            break;
            case "taconite-execute-javascript":
                executeJavascript(xml);
                break;
	        }
	}
};

    function executeJavascript(xmlNode) {
        var scripts = xmlNode.getElementsByTagName("script");
        for (var i = 0; i < scripts.length; i++) {
            var script = scripts[i];
            if (script.getAttribute("type") == "text/javascript") {
                var js = script.firstChild.nodeValue;
                eval(js);
            }
        }
    }

    function isInlineMode(node) {
        var attrType;
        if(!node.tagName.toLowerCase() == "input") {
            return false;
        }
		attrType=node.getAttribute("type");
		
		if(attrType=="radio" || attrType=="checkbox") {
                    return true;
                }
		return false;
    }  
    this.getJavaScript= function() {
        return "var dummy_taconite_variable=0";
    }; 
        function handleNode(xmlNode){
                var nodeType = xmlNode.nodeType;               
                switch(nodeType) {
                        case 1:  //ELEMENT_NODE
                           return handleElement(xmlNode);
                        case 3:  //TEXT_NODE
						case 4:  //CDATA_SECTION_NODE
                           return document.createTextNode(xmlNode.nodeValue);
                }      
                return null;
        }
        function handleElement(xmlNode){
                var domElemNode=null;
				var xmlNodeTagName=xmlNode.tagName.toLowerCase();
                if(isIE){
				if(isInlineMode(xmlNode)) {
                                    return document.createElement("<INPUT " + handleAttributes(domElemNode,xmlNode,true) + ">");
                                }
					if(xmlNodeTagName == "style"){
						//In internet explorer, we have to use styleSheets array.		
						var text,rulesArray,styleSheetPtr;
						var regExp = /\s+/g;
						text=xmlNode.text.replace(regExp, " ");
						rulesArray=text.split("}");
						
						domElemNode=document.createElement("style");
						styleSheetPtr=document.styleSheets[document.styleSheets.length-1];
						for(var i=0;i<rulesArray.length;i++){
							rulesArray[i]=taconite_trim(rulesArray[i]);
							var rulePart=rulesArray[i].split("{");
							if(rulePart.length==2) {//Add only if the rule is valid
								styleSheetPtr.addRule(rulePart[0],rulePart[1],-1);//Append at the end of stylesheet.
                                                        }
						}							
						return domElemNode;			
					}

                }
                if(domElemNode == null){
                        domElemNode=document.createElement(xmlNodeTagName);
                        handleAttributes(domElemNode,xmlNode);
                        //Fix for IE Script tag: Unexpected call to method or property access error
                        //IE don't allow script tag to have child
                        if(isIE && !domElemNode.canHaveChildren){
                                if(xmlNode.childNodes.length > 0){
                                    domElemNode.text=xmlNode.text;
                                }
       
                        }                              
                        else{
                                for(var z = 0; z < xmlNode.childNodes.length; z++) {
                                   var domChildNode=handleNode(xmlNode.childNodes[z]);
                                   if(domChildNode!=null) {
                                                domElemNode.appendChild(domChildNode);
                                   }
                                }
                        }
                }      
       
                return domElemNode;
        }
        function handleAttributes(domNode,xmlNode) {
                var attr = null;
                var attrString = "";
                var name = "";
                var value = "";
                var returnAsText=false;
                if(arguments.length==3) {
                    returnAsText = true;
                }

                for(var x = 0; x < xmlNode.attributes.length; x++) {
                        attr = xmlNode.attributes[x];
                        name = taconite_trim(attr.name);
                        value = taconite_trim(attr.value);
                        if(!returnAsText){
                                if(name == "style") {
                                        /* IE workaround */
                                        domNode.style.cssText=value;
                                        /* Standards compliant */
                                        domNode.setAttribute(name,value);
                                }
                                else if(taconite_trim(name).toLowerCase().substring(0, 2) == "on") {
                                        /* IE workaround for event handlers */
                                        domNode.setAttribute("ssf_"+name,value);
                                        eval("domNode." + taconite_trim(name).toLowerCase() + "=function(){" + value + "}");
                                }
                                else {
                                        /* Standards compliant */
                                        domNode.setAttribute(name,value);
                                       
                                }
                                        /* class attribute workaround for IE */
                                if(name == "class") {
                                        domNode.setAttribute("className",value);
                                }
                        }else{
                                attrString = attrString + name + "=\"" + value + "\" " ;
                        }
                }
                return attrString;
        }
    function getAppendAsFirstChild(domNode,xml){
                var firstNode=null;
                if(domNode.childNodes.length > 0) {
                        firstNode=domNode.childNodes[0];
                }
               
                for(var i=0;i<xml.childNodes.length;i++){
                        domChildNode=handleNode(xml.childNodes[i]);
                        if(domChildNode!=null){
                                if(firstNode==null){
                                        domNode.appendChild(domChildNode);
                                        firstNode=domChildNode;
                                }
                                else {
                                        domNode.insertBefore(domChildNode,firstNode);
                                }
                               
                        }
                }              
        }

        function getInsertAfter(domNode,xml){
                var domChildNode=null;
                var nextSibling=domNode.nextSibling;
                for(var i=0;i<xml.childNodes.length;i++){
                        domChildNode=handleNode(xml.childNodes[i]);
						if(domChildNode!=null){
	                        if(nextSibling!=null) {
                                    domNode.parentNode.insertBefore(domChildNode,nextSibling);
                                }
        	                else {
                                    domNode.parentNode.appendChild(domChildNode);
                                }
                            }
                }              
        }
        function getInsertBefore(domNode,xml){
                var domChildNode=null;
                for(var i=0;i<xml.childNodes.length;i++){
                        domChildNode=handleNode(xml.childNodes[i]);
                        if(domChildNode!=null) {
                                domNode.parentNode.insertBefore(domChildNode,domNode);
                        }
                }              
        }      
        function getReplace(domNode,xml){
                getInsertAfter(domNode,xml);
                domNode.parentNode.removeChild(domNode);
                ss_executeJavascript(domNode);
        }
        function getDelete(domNode) {
                domNode.parentNode.removeChild(domNode);
        }
        function getReplaceChildren(domNode,xml,doRemoveChildren) {
                var domChildNode=null;
                if(doRemoveChildren){
                        while(contextNode.childNodes.length >0){
                                contextNode.removeChild(contextNode.childNodes[0]);
                        }      
                }
                for(var i=0;i<xml.childNodes.length;i++){
                        domChildNode=handleNode(xml.childNodes[i]);
                        if(domChildNode!=null) {
                                domNode.appendChild(domChildNode);
                        }
                }              
        }
       
}