// JavaScript Document

var enableCache = true;
var jsCache = new Array();

var dynamicContent_ajaxObjects = new Array();

function ajax_showContent(divId,ajaxIndex,url)
{
	var targetObj = document.getElementById(divId);
	targetObj.innerHTML = dynamicContent_ajaxObjects[ajaxIndex].response;
	if(enableCache){
		jsCache[url] = 	dynamicContent_ajaxObjects[ajaxIndex].response;
	}
	dynamicContent_ajaxObjects[ajaxIndex] = false;
	
	ajax_parseJs(targetObj)
}

function ajax_loadContent(divId,url)
{
	if(enableCache && jsCache[url]){
		document.getElementById(divId).innerHTML = jsCache[url];
		return;
	}
	
	var ajaxIndex = dynamicContent_ajaxObjects.length;
	document.getElementById(divId).innerHTML = 'Loading content - please wait';
	dynamicContent_ajaxObjects[ajaxIndex] = new sack();
	dynamicContent_ajaxObjects[ajaxIndex].requestFile = url;	// �Q�b�g����t�@�C����w��
	dynamicContent_ajaxObjects[ajaxIndex].onCompletion = function(){ ajax_showContent(divId,ajaxIndex,url); };	//�t�@�C����Q�b�g������Ɏ��s����֐���w��
	dynamicContent_ajaxObjects[ajaxIndex].runAJAX();		// AJAX�֐�����s	
	
	
}

function ajax_parseJs(obj)
{
	var scriptTags = obj.getElementsByTagName('SCRIPT');
	var string = '';
	var jsCode = '';
	for(var no=0;no<scriptTags.length;no++){	
		if(scriptTags[no].src){
	        var head = document.getElementsByTagName("head")[0];
	        var scriptObj = document.createElement("script");
	
	        scriptObj.setAttribute("type", "text/javascript");
	        scriptObj.setAttribute("src", scriptTags[no].src);  	
		}else{
			if(navigator.userAgent.indexOf('Opera')>=0){
				jsCode = jsCode + scriptTags[no].text + '\n';
			}
			else
				jsCode = jsCode + scriptTags[no].innerHTML;	
		}
		
	}

	if(jsCode)ajax_installScript(jsCode);
}


function ajax_installScript(script)
{		
    if (!script)
        return;		
    if (window.execScript){        	
    	window.execScript(script)
    }else if(window.jQuery && jQuery.browser.safari){ 
        window.setTimeout(script,0);
    }else{        	
        window.setTimeout( script, 0 );
    } 
}