function login()
  {
    var username = document.getElementById('txusername').value;
	var password = document.getElementById('txpassword').value;
	
     
	 var err = "Please fill in ";
	 
	 if(username=="")
	    err += "\t\n  * your username";
	 if(password=="")
	    err += "\t\n  * your password";
		
	 if(err=="Please fill in ")
	   document.form1.submit();	
	 else
	   alert(err);  	
 
  }
  
function validateSearch()
{
  // var s = document.search.getElementbyId('txsearch').value;
   
   //if(s!='')
     document.search.submit();  
   //else
   //   alert(" Enter product to search");	 
}

  
  
function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		home_over = newImage("images/home_over.gif");
		desktop_over = newImage("images/desktop_over.gif");
		laptop_over = newImage("images/laptop_over.gif");
		software_over = newImage("images/software_over.gif");
		printer_over = newImage("images/printer_over.gif");
		monitor_over = newImage("images/monitor_over.gif");
		contactus_over = newImage("images/contactus_over.gif");
		preloadFlag = true;
	}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}