diff --git a/lib/chrome.js b/lib/chrome.js
index 623b25d..17bff4c 100644
--- a/lib/chrome.js
+++ b/lib/chrome.js
@@ -579,9 +579,9 @@ var ChromeObject = function() {
         var pos = -1;
 
         if (startIndex > 0) {
-            result = this.getEvaluatedValue('(function(k) { var rect = document.querySelectorAll("' + selector + '")[k].getBoundingClientRect(); return [parseInt(rect.left), parseInt(rect.top), window.pageXOffset + parseInt(rect.left), window.pageYOffset + parseInt(rect.top), parseInt(rect.width), parseInt(rect.height)].join(","); })(' + startIndex + ');');
+            result = this.getEvaluatedValue('(function(k) { var rect = document.querySelectorAll("' + selector + '")[k].getBoundingClientRect(); return [parseInt(rect.left), parseInt(rect.top), parseInt(window.pageXOffset + rect.left), parseInt(window.pageYOffset + rect.top), parseInt(rect.width), parseInt(rect.height)].join(","); })(' + startIndex + ');');
         } else {
-            result = this.getEvaluatedValue('(function() { var rect = document.querySelector("' + selector + '").getBoundingClientRect(); return [parseInt(rect.left), parseInt(rect.top), window.pageXOffset + parseInt(rect.left), window.pageYOffset + parseInt(rect.top), parseInt(rect.width), parseInt(rect.height)].join(","); })();');
+            result = this.getEvaluatedValue('(function() { var rect = document.querySelector("' + selector + '").getBoundingClientRect(); return [parseInt(rect.left), parseInt(rect.top), parseInt(window.pageXOffset + rect.left), parseInt(window.pageYOffset + rect.top), parseInt(rect.width), parseInt(rect.height)].join(","); })();');
         }
 
         pos = result.split(',');
@@ -606,6 +606,43 @@ var ChromeObject = function() {
         }
     };
 
+    this.getElementPositionByText = function(selector, searchText) {
+		var result;
+        var pos = -1;
+        var s = '(function() {'
+            + '    var element = Object.values(document.querySelectorAll("' + selector + '")).find(function(x) {'
+            + '        return (x.innerText.indexOf(decodeURIComponent("' + encodeURIComponent(searchText) + '")) > -1);'
+            + '    });'
+            + '    if (element) {'
+            + '        var rect = element.getBoundingClientRect();'
+			+ '        return [parseInt(rect.left), parseInt(rect.top), parseInt(window.pageXOffset + rect.left), parseInt(window.pageYOffset + rect.top), parseInt(rect.width), parseInt(rect.height)].join(",");'
+            + '    }'
+            + '})()'
+        ;
+
+		result = this.getEvaluatedValue(s);
+        pos = result.split(',');
+        if (pos.length == 6) {
+            return {
+                "x": parseInt(pos[0]),
+                "y": parseInt(pos[1]),
+                "a": parseInt(pos[2]),
+                "b": parseInt(pos[3]),
+                "w": parseInt(pos[4]),
+                "h": parseInt(pos[5])
+            };
+        } else {
+            return {
+                "x": -1,
+                "y": -1,
+                "a": -1,
+                "b": -1,
+                "g": -1,
+                "d": -1
+            };
+        }
+    };
+
     this.getNestedElementPosition = function(selector, subSelector, searchText, startIndex) {
         var s = '';
         var startIndex = (typeof startIndex !== 'undefined' ? startIndex : 0);
@@ -620,8 +657,11 @@ var ChromeObject = function() {
                 + '        return (text.split(" ").filter(function(w) { return keywords.indexOf(w) > -1; }).length >= keywords.length);'
                 + '    ' + (startIndex > 0 ? '}).slice(' + startIndex + ');' : '});')
                 + '    if (elements.length > 0) {'
-                + '        var rect = elements[0].querySelector("' + subSelector + '").getBoundingClientRect();'
-                + '        return [parseInt(rect.left), parseInt(rect.top), window.pageXOffset + parseInt(rect.left), window.pageYOffset + parseInt(rect.top), parseInt(rect.width), parseInt(rect.height), ""].join(",");' 
+                + '        var element = elements[0];'
+                + '        var rect = element.getBoundingClientRect();'
+                + '        var elClassName = "welsonjs_" + parseInt(Math.random() * 1000000000);'
+                + '        element.setAttribute("class", element.getAttribute("class") + " " + elClassName);'
+                + '        return [parseInt(rect.left), parseInt(rect.top), parseInt(window.pageXOffset + rect.left), parseInt(window.pageYOffset + rect.top), parseInt(rect.width), parseInt(rect.height), "." + elClassName].join(",");' 
                 + '    } else {'
                 + '        return "";'
                 + '    }'
@@ -641,7 +681,7 @@ var ChromeObject = function() {
                     + '        var rect = element.getBoundingClientRect();'
                     + '        var elClassName = "welsonjs_" + parseInt(Math.random() * 1000000000);'
                     + '        element.setAttribute("class", element.getAttribute("class") + " " + elClassName);'
-                    + '        return [parseInt(rect.left), parseInt(rect.top), window.pageXOffset + parseInt(rect.left), window.pageYOffset + parseInt(rect.top), parseInt(rect.width), parseInt(rect.height), "." + elClassName].join(",");' 
+                    + '        return [parseInt(rect.left), parseInt(rect.top), parseInt(window.pageXOffset + rect.left), parseInt(window.pageYOffset + rect.top), parseInt(rect.width), parseInt(rect.height), "." + elClassName].join(",");' 
                     + '    } else {'
                     + '        return "";'
                     + '    }'
@@ -657,7 +697,7 @@ var ChromeObject = function() {
                     + '        var rect = element.getBoundingClientRect();'
                     + '        var elClassName = "welsonjs_" + parseInt(Math.random() * 1000000000);'
                     + '        element.setAttribute("class", element.getAttribute("class") + " " + elClassName);'
-                    + '        return [parseInt(rect.left), parseInt(rect.top), window.pageXOffset + parseInt(rect.left), window.pageYOffset + parseInt(rect.top), parseInt(rect.width), parseInt(rect.height), "." + elClassName].join(",");' 
+                    + '        return [parseInt(rect.left), parseInt(rect.top), parseInt(window.pageXOffset + rect.left), parseInt(window.pageYOffset + rect.top), parseInt(rect.width), parseInt(rect.height), "." + elClassName].join(",");' 
                     + '    } else {'
                     + '        return "";'
                     + '    }'
@@ -675,8 +715,11 @@ var ChromeObject = function() {
                 + '        return (text.indexOf(searchText) > -1);'
                 + '    ' + (startIndex > 0 ? '}).slice(' + startIndex + ');' : '});')
                 + '    if (elements.length > 0) {'
-                + '        var rect = elements[0].querySelector("' + subSelector + '").getBoundingClientRect();'
-                + '        return [parseInt(rect.left), parseInt(rect.top), window.pageXOffset + parseInt(rect.left), window.pageYOffset + parseInt(rect.top), parseInt(rect.width), parseInt(rect.height), ""].join(",");' 
+                + '        var element = elements[0];'
+                + '        var rect = element.getBoundingClientRect();'
+                + '        var elClassName = "welsonjs_" + parseInt(Math.random() * 1000000000);'
+                + '        element.setAttribute("class", element.getAttribute("class") + " " + elClassName);'
+                + '        return [parseInt(rect.left), parseInt(rect.top), parseInt(window.pageXOffset + rect.left), parseInt(window.pageYOffset + rect.top), parseInt(rect.width), parseInt(rect.height), "." + elClassName].join(",");' 
                 + '    } else {'
                 + '        return "";'
                 + '    }'
@@ -948,7 +991,7 @@ var ChromeObject = function() {
     };
 
     this.getWindowInnerHeight = function() {
-        return this.getEvaluatedValue('window.innerHeight');
+        return parseInt(this.getEvaluatedValue('window.innerHeight'));
     };
 
     // formula: y > 0 and y + h < ih