function echeck(value) {
	    //alert("in function");
    	var re = new RegExp(/^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,3})$/i);
    	if (re.test(value)) {
       		return true;
    	} 
    	else {
    		return false;
    	} 
}


function validate(form){


	if(document.frmcontact.name.value==""){
		alert("Enter name");
		document.frmcontact.name.focus();
		return false;
	}else if(document.frmcontact.email.value==""){
		alert("Enter email address");
		document.frmcontact.email.focus();
		return false;
	}else if(echeck(document.frmcontact.email.value)==false){
		alert("Enter valid email address"); 	
	    document.frmcontact.email.focus();
		return false;	
	}else if(document.frmcontact.phone.value==""){
		alert("Enter phone number"); 	
	    document.frmcontact.phone.focus();
		return false;	
	}else if(document.frmcontact.security_code.value==""){
		alert("Enter code as in image"); 	
	    document.frmcontact.security_code.focus();
		return false;	
	}else if(document.frmcontact.coments.value==""){
		alert("Enter comments"); 	
	    document.frmcontact.coments.focus();
		return false;	
	}
	
	
}