// JavaScript Document

function trimStr(str){
   str = (str).replace( /^\s*/, "" );
   str = (str).replace( /\s*$/, "" );
   return str;
}
  
function checkContact(){
    var frm=document.frmcontact;
	if(trimStr(frm.name.value) == ""){
	     alert("Please enter your name");
		 frm.name.focus();
		 return false;
	}
	 
	if(trimStr(frm.email.value) == ""){ 	  
	     alert("Please enter your email address");
		 frm.email.focus();
		 return false;
	}
	if(trimStr(frm.email.value) != ""){
	     var dotpos=frm.email.value.indexOf('.');
		 var amppos=frm.email.value.indexOf('@');
		 var lastpos=frm.email.value.length;
		 if(dotpos<1 | amppos<1 | lastpos==amppos | lastpos==dotpos){
		    alert("Error in your email address");
			frm.email.focus();
		    return false;
	     }
	 }  	 
	  
	 if(trimStr(frm.message.value) == ""){ 	  
	     alert("Please enter your message");
		 frm.message.focus();
		 return false;
	 }
}