// JavaScript Document





function validate()

{

	

	

	var name = document.forms[0].name.value;

	var mobile = document.forms[0].mobile.value;

	var email = document.forms[0].email.value;

	var pref_time = document.forms[0].pref_time.value;



    if(trim(name)=="")

	{

		alert("Please enter your name");

		document.forms[0].name.focus();

		return false;

	}

	else if(trim(mobile)=="")

	{

		alert("Please enter your mobile number");

		document.forms[0].mobile.focus();

	 	return false;

	}

	if((echeck(email))==false)

	{

		alert("Please enter your valid E-MAIL");

		document.forms[0].email.focus();

	 	return false;

	}

	

	if(trim(pref_time)=="")

	{

		alert("Please enter Preferable time");

		document.forms[0].pref_time.focus();

	 	return false;

	}

	

	return true;

}







function trim(inputString) {

   if (typeof inputString != "string") { return inputString; }

   var retValue = inputString;

   var ch = retValue.substring(0, 1);

   while (ch == " ") { 

      retValue = retValue.substring(1, retValue.length);

      ch = retValue.substring(0, 1);

   }

   ch = retValue.substring(retValue.length-1, retValue.length);

   while (ch == " ") { 

      retValue = retValue.substring(0, retValue.length-1);

      ch = retValue.substring(retValue.length-1, retValue.length);

   }

   while (retValue.indexOf("  ") != -1) { // Note that there are two spaces in the string - look for 

      retValue = retValue.substring(0, retValue.indexOf("  ")) + retValue.substring(retValue.indexOf("  ")+1, retValue.length);

   }

   return retValue;

} 





function echeck(str) {



		var at="@"

		var dot="."

		var lat=str.indexOf(at)

		var lstr=str.length

		var ldot=str.indexOf(dot)

		if (str.indexOf(at)==-1){

		   

		   return false

		}

         if(str.indexOf("'")!=-1)

		{

			 return false

		}



		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){

		   

		   return false

		}



		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){

		  

		    return false

		}



		 if (str.indexOf(at,(lat+1))!=-1){

		   

		    return false

		 }



		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){

		   

		    return false

		 }



		 if (str.indexOf(dot,(lat+2))==-1){

		   

		    return false

		 }

		

		 if (str.indexOf(" ")!=-1){

		   

		    return false

		 }



 		 return true					

}