function callme(a,b)
{
if (a.value=='')
{a.value=b};
}
 function focme(a,b)
{
if (a.value==b)
{a.value=''};
}
 function validate()
 {if ((document.cont.Name.value=='')||(document.cont.Name.value=='Name'))
 {alert('Please enter the Name');
  document.cont.Name.focus()
 return false;}
 if ((document.cont.Mobile_No.value=='')||(document.cont.Mobile_No.value=='Mobile No.'))
 {alert('Please enter the Mobile No.');
  document.cont.Mobile_No.focus()
 return false;}
 if ((document.cont.EMail.value=='')||(document.cont.EMail.value=='Email'))
 {alert('Please enter the EMail');
  document.cont.EMail.focus()
 return false;}
 elem=document.cont.EMail;
	var emailExp = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;
	if(elem.value.match(emailExp)){}else{
		alert('Please enter the valid Email Id.');
		elem.focus();
		return false;
	}

  if ((document.cont.Message.value=='')||(document.cont.Message.value=='Message'))
 {alert('Please enter the Message');
  document.cont.Message.focus()
 return false;}
 }