index.js

web3 = new Web3(new Web3.providers.HttpProvider("http://localhost:8545"));
abi = JSON.parse('[{"constant":false,"inputs":[{"name":"candidate","type":"bytes32"}],"name":"totalVotesFor","outputs":[{"name":"","type":"uint8"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"candidate","type":"bytes32"}],"name":"validCandidate","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"","type":"bytes32"}],"name":"votesReceived","outputs":[{"name":"","type":"uint8"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"x","type":"bytes32"}],"name":"bytes32ToString","outputs":[{"name":"","type":"string"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"","type":"uint256"}],"name":"candidateList","outputs":[{"name":"","type":"bytes32"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"candidate","type":"bytes32"}],"name":"voteForCandidate","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"contractOwner","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"inputs":[{"name":"candidateNames","type":"bytes32[]"}],"payable":false,"type":"constructor"}]');
VotingContract = web3.eth.contract(abi);

//Address has to be added here
contractInstance = VotingContract.at('0x863980039a7c2e7e3dc3d2b96bf827bb0d24e4de');
candidates = {"Manik": "candidate-1", "Akshat": "candidate-2", "Ashwin": "candidate-3", "Chahat":"candidate-4"};

// VOTE FOR CANDIDATE function
function voteForCandidate(){
	candidateName = $("#candidate").val();
	contractInstance.voteForCandidate(candidateName, {from:web3.eth.accounts[0]},function(){
		let div_id = candidates[candidateName];
		$('#' + div_id).html(contractInstance.totalVotesFor.call(candidateName).toString());
	});

}

$(document).ready(function() {
  candidateNames = Object.keys(candidates);
  for (var i = 0; i < candidateNames.length; i++) {
    let name = candidateNames[i];
    let val = contractInstance.totalVotesFor.call(name).toString()
    $("#" + candidates[name]).html(val);
  }
});