//Roll-over for Main Menu Thumbnails
var rollOverArr=new Array();
function setrollover(OverImgSrc,pageImageName)
{
if (! document.images)return;
if (pageImageName == null)
    pageImageName = document.images[document.images.length-1].name;
rollOverArr[pageImageName]=new Object;
rollOverArr[pageImageName].overImg = new Image;
rollOverArr[pageImageName].overImg.src=OverImgSrc;
}

function rollover(pageImageName)
{
if (! document.images)return;
if (! rollOverArr[pageImageName])return;
if (! rollOverArr[pageImageName].outImg)
    {
    rollOverArr[pageImageName].outImg = new Image;
    rollOverArr[pageImageName].outImg.src = document.images[pageImageName].src;
    }
document.images[pageImageName].src=rollOverArr[pageImageName].overImg.src;
}

function rollout(pageImageName)
{
if (! document.images)return;
if (! rollOverArr[pageImageName])return;
document.images[pageImageName].src=rollOverArr[pageImageName].outImg.src;
}

// Text Blink-->

function doBlink() {
  var blink = document.all.tags("BLINK")
    for (var i=0; i<blink.length; i++)
        blink[i].style.visibility = blink[i].style.visibility == "" ? "hidden" : ""
}
function startBlink() {
  if (document.all)		setInterval("doBlink()",1000)
}
  window.onload = startBlink;

//roll-over for image viewer thumbnails
 function prev(Img) {
        document.getElementById('theImg').onmouseover = Img.onmouseover;
        document.getElementById('theImg').onmouseout = Img.onmouseout;
        document.getElementById('theImg').onclick = Img.onclick;
        document.getElementById('theImg').alt = Img.alt;
        document.getElementById('theImg').src = Img.src;
        return false;
        }

// Cancel Button
//alert("Redirecting you to echo.php page");
//window.location="echo.php"</script>';
 function cancelAction() {
      var cancel=confirm("Are you sure you want to cancel?")
      if (cancel==true)
      {
        history.back(1);
      }
      else
      {
        <!--  nothing happens-->
      }
    }

// Ok Button
 function okAction() {
      var cancel=confirm("Update Image?.")
      if (cancel==true)
      {
        history.back(1);
      }
      else
      {
        <!--  nothing happens-->
      }
    }

 // Uploaded Image
 function uploadConfirm() {
      var upload=confirm("Image is uploaded./n Do you want to upoad more images?")
      if (upload==true)
      {
        history.back(1);
      }
      else
      {
        <!--  nothing happens-->
      }
    }

function ajaxFunction(){
	var ajaxRequest;  // The variable that makes Ajax possible!

	try{
		// Opera 8.0+, Firefox, Safari
		ajaxRequest = new XMLHttpRequest();
	} catch (e){
		// Internet Explorer Browsers
		try{
			ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try{
				ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e){
				// Something went wrong
				alert("Your browser broke!");
				return false;
			}
		}
	}
	// Create a function that will receive data sent from the server
	ajaxRequest.onreadystatechange = function(){
		if(ajaxRequest.readyState == 4){
			var ajaxDisplay = document.getElementById('ajaxDiv');
			ajaxDisplay.innerHTML = ajaxRequest.responseText;
		}
	}
	var category_id = document.getElementById('category_id').value;

	var queryString = "?category_id=" + category_id;
	ajaxRequest.open("GET", "cat_query.php" + queryString, true);
	ajaxRequest.send(null);
}

 function validate() {
   if (document.form1.category_id.value.length <1) {alert("Please enter categoty type.");
    return false;
    }
    if (document.form1.product_code.value.length <1) {alert("Please enter product code.");
    return false;
    }
    if (document.form1.product_name.value.length <1) {alert("Please enter product name.");
    return false;
    }
    if (document.form1.product_price.value.length <1) {alert("Please enter product price.");
    return false;
    }
}