// author lvyan

//reqMode: POST , GET etc.
//reqUrl: /test.do
//aSync: true or false
// postParam:  name=value&anothername=othervalue&so=on    or null
// returnToObjId  objectName or null

function sendForHTML(reqMode,reqUrl,aSync,postParam,returnToObjId){
        //alert(reqUrl);
        if(reqUrl.indexOf("pageCacheFlag")==-1){
        	if(reqUrl.indexOf("?")==-1)
        		reqUrl+="?pageCacheFlag=0";
        	else
        		reqUrl+="&pageCacheFlag=0";      	
        }        
        var reqObj=getHttpRequest();
        //alert(reqMode);
        var retText="";
        if(!reqObj){
                alert("browser does not support ajax");
                return;
        }
        reqObj.onreadystatechange = function() {
        	
                        if (reqObj.readyState == 4) {
                        			//alert("status="+reqObj.status);
                            if (reqObj.status == 200) {
                                retText = reqObj.responseText;
								
                                     if(document.getElementById(returnToObjId)){                                       
                                                 document.getElementById(returnToObjId).innerHTML = retText;
												
								                               
								                 }
                
                            } else {
                                alert('response2HTML:There was a problem with the request. return status='+reqObj.status);
                            }
                        }
                };
        //alert(reqUrl);
        reqObj.open(reqMode, reqUrl, aSync);
        //alert(aSync);
        if('POST'==reqMode){
                reqObj.setRequestHeader('Content-type','application/x-www-form-urlencoded');
                //alert(postParam);
                reqObj.send(postParam);
        }
        else{
                reqObj.send(null);
        }
       // alert(retText);
        return retText;

}





function getHttpRequest()
{
        var d3_http_request = false;
        if (window.XMLHttpRequest) { // Mozilla, Safari,...
            d3_http_request = new XMLHttpRequest();
            if (d3_http_request.overrideMimeType) {
                d3_http_request.overrideMimeType('text/xml');
            }
        } else if (window.ActiveXObject) { // IE
            try {
                d3_http_request = new ActiveXObject("Msxml2.XMLHTTP");
            } catch (e) {
                try {
                    d3_http_request = new ActiveXObject("Microsoft.XMLHTTP");
                } catch (e) {}
            }
        }
	return d3_http_request;
}