function checkForm(form) 
{ 
 var len = form.elements.length;	  
for (var i = 0; i < len; i++) 
{
if (form.elements[i].id != "f")
{
if ((form.elements[i].value == null
 || form.elements[i].value == ""))   
{
	/*
alert("  من فضلك تاكد من ادخال : " 
+ form.elements[i].id + ".");
*/
  form.elements[i].focus();	
    form.elements[i].style.border='2px solid red';	
return false; 
}
} 
}
}