old_contents: function getSelect(array) {
      var select = document.createElement("select");
      var option = undefined;	
  
      array.forEach( function (value) {
  	option = document.createElement("option");
  	option.value = value;
  	option.text = value;
  	
  	select.appendChild(option);
      });
  
      return select;
  }
  
  function solve() {
      var targets = ["provaro","pass"];
      var regWord = /\w+/g;
  
      var controls = [];
  
      var text = document.getElementById("prova").innerHTML;
      var words = text.match(regWord);
      var before = "";
  
      var start = 0;
  
      words.forEach( function (word) {
  	var pullTarget = [];
  
  	targets.forEach( function (target) {
  	    var distance = getEditDistance(word.toLowerCase(),target);
  
  	    if (distance > 0 && distance <= 2) {
  		pullTarget.push(word,target);
  	    }
  	});
  
  	if (pullTarget.length > 0) {
  	    var chunk = {
  		end: text.indexOf(word,start),
  		mistake: pullTarget			
  	    };
  
  	    start = chunk.end + word.length;
  	    
  	    controls.push(chunk);
  	}
      });
  
      start = 0;
      var result = document.getElementById("check");
  
      controls.forEach( function ( chunk ) {
  	if ( chunk.end - start > 0 ) {
  	    result.innerHTML = 
  		result.innerHTML + text.substring(start,chunk.end);
  	}	
  
  	var choice = getSelect(chunk.mistake);
  	result.appendChild(choice);
  
  	start = chunk.end + chunk.mistake[0].length; 
      });
  
      console.log(result.innerHTML);
      
      if ( start > 0 ) {
  	result.innerHTML = result.innertHTML + text.substring(start);
      }
  }
  
  
  
  
  
new_contents: function getSelect(array) {
      var select = document.createElement("select");
      var option = undefined;	
  
      array.forEach( function (value) {
  	option = document.createElement("option");
  	option.value = value;
  	option.text = value;
  	
  	select.appendChild(option);
      });
  
      return select;
  }
  
  function solve() {
      var targets = ["provaro","pass"];
      var regWord = /\w+/g;
  
      var controls = [];
  
      var text = document.getElementById("prova").innerHTML;
      var words = text.match(regWord);
      var before = "";
  
      var start = 0;
  
      words.forEach( function (word) {
  	var pullTarget = [];
  
  	targets.forEach( function (target) {
  	    var distance = getEditDistance(word.toLowerCase(),target);
  
  	    if (distance > 0 && distance <= 2) {
  		pullTarget.push(word,target);
  	    }
  	});
  
  	if (pullTarget.length > 0) {
  	    var chunk = {
  		end: text.indexOf(word,start),
  		mistake: pullTarget			
  	    };
  
  	    start = chunk.end + word.length;
  	    
  	    controls.push(chunk);
  	}
      });
  
      start = 0;
      var result = document.getElementById("check");
  
      controls.forEach( function ( chunk ) {
  	if ( chunk.end - start > 0 ) {
  	    result.innerHTML = 
  		result.innerHTML + text.substring(start,chunk.end);
  	}	
  
  	var choice = getSelect(chunk.mistake);
  	result.appendChild(choice);
  
  	start = chunk.end + chunk.mistake[0].length; 
      });
  
      if ( start > 0 ) {
  	result.innerHTML = result.innerHTML + text.substring(start);
      }
  }
  
  
  
  
  
subject: Fix typo