function trim(inputString) {

 

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

   var retValue = inputString;

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

   while (ch == " ") { // Check for spaces at the beginning of the string

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

      ch = retValue.substring(0, 1);

   }

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

   while (ch == " ") { // Check for spaces at the end of the string

      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 multiple spaces within the string

      retValue = retValue.substring(0, retValue.indexOf("  ")) + retValue.substring(retValue.indexOf("  ")+1, retValue.length); // Again, there are two spaces in each of the strings

   }

   return retValue; // Return the trimmed string back to the user

} // Ends the "trim" function







function validate_form(frm){

	var flag=true;

	if(frm.name.value=='' || frm.name.value=='Name'){
		flag=false;
		alert('Please enter your name !');
		frm.name.focus(); 
	}
	else if(frm.email.value==''|| frm.email.value=='Email'){
		flag=false;
		alert('Please enter your email Id');
		frm.email.focus(); 
	}
	else if(echeck(frm.email.value)==false){
		frm.email.focus(); 
		flag=false;
	}
	
	return flag;	
}

	

	

	

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){

		   alert("Invalid E-mail ID")

		   return false

		}


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

		   alert("Invalid E-mail ID")

		   return false

		}


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

		    alert("Invalid E-mail ID")

		    return false

		}


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

		    alert("Invalid E-mail ID")

		    return false

		 }


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

		    alert("Invalid E-mail ID")

		    return false

		 }


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

		    alert("Invalid E-mail ID")

		    return false

		 }

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

		    alert("Invalid E-mail ID")

		    return false

		 }


 		 return true					

	}// JavaScript Document

	

	

	

	

	

	

	// JavaScript Document