function chk_contact_frm(){
	   if(document.getElementById('fname').value==""){
	   alert("Please enter your first name");
	   document.getElementById('fname').focus();
	   return false;
	 }
	 
	 if(document.getElementById('con_email').value==""){
	   alert("Please enter the con_email Id");
	   document.getElementById('con_email').focus();
	   return false;
	 }
	  
	 if(document.getElementById('con_email').value.length >0) {
	 i=document.getElementById('con_email').value.indexOf("@")
	 j=document.getElementById('con_email').value.indexOf(".",i)
	 k=document.getElementById('con_email').value.indexOf(",")
	 kk=document.getElementById('con_email').value.indexOf(" ")
	 jj=document.getElementById('con_email').value.lastIndexOf(".")+1
	 len=document.getElementById('con_email').value.length
		}
 	if ((i>0) && (j>(1+1)) && (k==-1) && (kk==-1) && (len-jj >=2) && (len-jj<=3)) {
 	}
 	else {
 		alert("Please enter a valid email address.\n" +
		document.getElementById('con_email').value + " is invalid.");
		document.getElementById('con_email').focus() ;
		return false; } 
	 
	 
  	  if(document.getElementById('phone').value==""){
	   alert("Please enter your phone number");
	   document.getElementById('phone').focus();
	   return false;
	 }
	  if(document.getElementById('comments').value==""){
	   alert("Please enter your comments");
	   document.getElementById('comments').focus();
	   return false;
	 }
	
	 return true;
  }