function GetXmlHttpObject()
{ 
	var objXMLHttp=null
	if (window.XMLHttpRequest) {
		objXMLHttp=new XMLHttpRequest()
	} else if (window.ActiveXObject) {
		objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP")
	}
	return objXMLHttp
}
function deleteFile(divId,divVal)
{
	var xmlhttp;
	xmlHttp = GetXmlHttpObject();
	var url = "addrate.php";
	xmlHttp.open("POST", url, true);
	xmlHttp.onreadystatechange = showRateDiv
	xmlHttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
	xmlHttp.send("mode=rate&divid="+escape(divId)+"&divval="+divVal);
}
function showRateDiv() {
	if(xmlHttp.readyState == 4) {
		var retStr = xmlHttp.responseText;
		var ContentArray = retStr.split("###");
		var divId = ContentArray[0];
		//alert(divId);
		var Content = ContentArray[1];
		var fieldObj = document.getElementById(divId);
		var ni = fieldObj
		var numi = document.getElementById('theValue');
		var num = (document.getElementById('theValue').value -1)+ 2;
		numi.value = num;
		var newdiv = document.createElement('div');
		var divIdName = 'myDiv_'+num;
		newdiv.setAttribute('id',divIdName);
		newdiv.setAttribute("style","padding-top:4px;");
		newdiv.innerHTML = Content+' <a href=\'#\' onclick=\'removeElement("'+divIdName+'","'+divId+'")\'>Remove</a>';
		ni.appendChild(newdiv);
	}
}
function addNewElement(divId,divVal)
{
	var xmlhttp;
	xmlHttp = GetXmlHttpObject();
	var url = "addajaxelement.php";
	xmlHttp.open("POST", url, true);
	xmlHttp.onreadystatechange = showNewElement
	xmlHttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
	xmlHttp.send("mode=rate&divid="+escape(divId)+"&divval="+divVal+"&type=document_file");
}
function showNewElement() {
	if(xmlHttp.readyState == 4) {
		var retStr = xmlHttp.responseText;
		var ContentArray = retStr.split("###");
		var divId = ContentArray[0];
		//alert(divId);
		if(divId!="0")
		{
			var Content = ContentArray[1];
			var fieldObj = document.getElementById(divId);
			var ni = fieldObj
			var numi = document.getElementById('theValue');
			var num = (document.getElementById('theValue').value -1)+ 2;
			numi.value = num;
			var newdiv = document.createElement('div');
			var divIdName = 'myDiv_'+num;
			newdiv.setAttribute('id',divIdName);
			newdiv.setAttribute("style","padding-top:4px;");
			newdiv.innerHTML = '<div>'+Content+' <a href=\'#\' onclick=\'removeElement("'+divIdName+'","'+divId+'")\'>Remove</a>'+'</div>';
			ni.appendChild(newdiv);
		}
		else
		{
			alert("Sorry some error in addition of the element. Please try again.");
			return false;
		}
	}
}
function removeElement(divId,parentIdDiv) {
  var par = document.getElementById(parentIdDiv);
  var d = par;
  var olddiv = document.getElementById(divId);
  var delDiv = olddiv;
  d.removeChild(delDiv);
}
var valid_extensions = /(.doc|.pdf)$/i;
function CheckExtension(fld)
{
	if(fld.value) {
		if (valid_extensions.test(fld.value)){
			return true;
		} else {
			return false;
		}
	} else {
		return true;
	}
}