var xmlHttp

function GetXmlHttpObject() { 
	var objXMLHttp=null
	if (window.XMLHttpRequest) {
		objXMLHttp=new XMLHttpRequest()
	} else if (window.ActiveXObject) {
		objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP")
	}
	return objXMLHttp
}


function oblicz_cene_ajax() {
	xmlHttp=GetXmlHttpObject()
	if (xmlHttp==null) {
		alert ("Browser does not support HTTP Request")
		return
	} 
	
	var dp = document.getElementById('dp_ajax').value
	var dw = document.getElementById('dw_ajax').value
	var wk = document.getElementById('wk_ajax').value
	var ob = document.getElementById('ob_id_ajax').value
	var l = document.getElementById('l_ajax').value
	var oc = "t"

	var url="index.php?ps=oblicz_cene_ajax"
	url=url+"&dp="+dp
	url=url+"&dw="+dw
	url=url+"&wk="+wk
	url=url+"&ob="+ob
	url=url+"&oc="+oc
	url=url+"&l="+l
	url=url+"&sid="+Math.random()
	
	xmlHttp.onreadystatechange=stateChanged 
	xmlHttp.open("GET",url,true)
	xmlHttp.send(null)
} 


function stateChanged() { 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete") document.getElementById("show_oblicz_cene_ajax").innerHTML=xmlHttp.responseText
	if (xmlHttp.readyState==1 || xmlHttp.readyState=="loading") document.getElementById("show_oblicz_cene_ajax").innerHTML='<div align=center><img id="submitImage" name="submitImage" src="images/loading.gif" alt="Obliczanie ceny ..." /></div>'
}