var xmlHttp;

function checkInventory(rskuItem,division,location,language_code,base_link,lang_code,param2)
{

    xmlHttp=GetXmlHttpObject()
    if (xmlHttp==null)
    {
        alert ("Browser does not support HTTP Request")
        return
    } 
    var url=base_link+"/product_inventory.php"
    url=url+"?rsku_number="+rskuItem+"&division_number="+division+"&location_number="+location+"&base_link="+base_link+"&language_code="+language_code+"&lang_code="+lang_code+"&param2="+param2
    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")
    { 
//	alert(xmlHttp.responseText);
	//    	document.getElementById("showReserveBut").innerHTML=xmlHttp.responseText 
	if(Trim(xmlHttp.responseText) == 'button')
	{
	    	document.getElementById("display_order").style.display = "block"
	    	document.getElementById("display_order_button").style.display = "block"
	    	document.getElementById("error_message").innerHTML="" 
	//    	document.getElementById("error_message_1").class = "displayerrors_database"
	//	alert(xmlHttp.responseText);
	}
	else
	{
	    	document.getElementById("display_order").style.display = "none"
	    	document.getElementById("display_order_button").style.display = "none"
	    	document.getElementById("error_message").innerHTML=xmlHttp.responseText 
	}
    } 
} 

function GetXmlHttpObject()
{ 
    var objXMLHttp=null
    if (window.XMLHttpRequest)
    {
        objXMLHttp=new XMLHttpRequest()
    }
    else if (window.ActiveXObject)
    {
        objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP")
    }
    return objXMLHttp
}
function LTrim(str) {
        for (var k=0; k<str.length && str.charAt(k)<=" " ; k++) ;
        return str.substring(k,str.length);
}

function RTrim(str) {
        for (var j=str.length-1; j>=0 && str.charAt(j)<=" " ; j--) ;
        return str.substring(0,j+1);
}

function Trim(str) {
        return LTrim(RTrim(str));
}