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.fname.value=='' || frm.fname.value=='First Name'){

    flag=false;

	alert('Please enter your  First name');

	}

	else if(frm.lname.value=='' || frm.lname.value=='Last Name'){

    flag=false;

	alert('Please enter your Surname');

	}	

	else if(frm.email.value==''|| frm.email.value=='Email Id'){

	flag=false;

	alert('Please enter your email id');

	}

	else if(echeck(frm.email.value)==false){

	flag=false;

	}

	else if(frm.phone.value=='' || frm.phone.value=='Telephone'){

	flag=false;

	alert('Please enter your phone number');

	}
	else if(frm.company.value=='' || frm.company.value=='Company'){

	flag=false;

	alert('Please enter your Company');

	}


	else if(frm.comments.value=='' || frm.comments.value=='Message'){

	flag=false;

	alert('Please enter comments');

	}

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