function echeck(f){var a="@";var b=".";var e=f.indexOf(a);var c=f.length;var d=f.indexOf(b);if(f.indexOf(a)==-1){alert("Invalid E-mail ID");return false}if(f.indexOf(a)==-1||f.indexOf(a)==0||f.indexOf(a)==c){alert("Invalid E-mail ID");return false}if(f.indexOf(b)==-1||f.indexOf(b)==0||f.indexOf(b)==c){alert("Invalid E-mail ID");return false}if(f.indexOf(a,(e+1))!=-1){alert("Invalid E-mail ID");return false}if(f.substring(e-1,e)==b||f.substring(e+1,e+2)==b){alert("Invalid E-mail ID");return false}if(f.indexOf(b,(e+2))==-1){alert("Invalid E-mail ID");return false}if(f.indexOf(" ")!=-1){alert("Invalid E-mail ID");return false}return true}function ValidateForm(){var a=document.Register.email;if((a.value==null)||(a.value=="")){alert("Please Enter your Email ID");a.focus();return false}if(echeck(a.value)==false){a.value="";a.focus();return false}return true};