diff --git a/README.md b/README.md
index 80c2895..f7fb03f 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,7 @@
  * Scrubbed interpolation: `{{%unsafe_value}}`
  * Name-spaced variables: `{{=User.address.city}}`
  * If/else blocks: `{{value}} <<markup>> {{:value}} <<alternate markup>> {{/value}}`
+ * If/else blocks: `{{value=='x'}} <<markup>> {{:value=='x'}} <<alternate markup>> {{/value=='x'}}`    ( === == > < >= <= != )
  * If not blocks: `{{!value}} <<markup>> {{/!value}}`
  * Object/Array iteration: `{{@object_value}} {{=_key}}:{{=_val}} {{/@object_value}}`
  * Multi-line templates (no removal of newlines required to render)
diff --git a/t.js b/t.js
index add6913..79fbe64 100644
--- a/t.js
+++ b/t.js
@@ -19,7 +19,8 @@
 (function() {
 
 	var blockregex = /\{\{(([@!]?)(.+?))\}\}(([\s\S]+?)(\{\{:\1\}\}([\s\S]+?))?)\{\{\/\1\}\}/g,
-		valregex = /\{\{([=%])(.+?)\}\}/g;
+		valregex = /\{\{([=%])(.+?)\}\}/g,
+		conregex = /([^=><]+?)([!=>< ]+)(.+)$/;
 
 	function t(template) {
 		this.t = template;
@@ -39,6 +40,21 @@
 		}
 		return vars;
 	}
+	
+	function get_value_con(vars, key){
+		var v = null;
+		if(key.charAt(0) == "'" || key.charAt(0) == '"'){
+			v = key.substr(1);
+			if(v.charAt(v.length - 1) == "'" || v.charAt(v.length - 1) == '"') {
+				v = v.substr(0,v.length -1);
+			}
+		}else if(!isNaN(key.charAt(0))){
+			v = Number(key);
+		}else{
+			v = get_value(vars, key);
+		}
+		return v;
+	}
 
 	function render(fragment, vars) {
 		return fragment
@@ -51,6 +67,42 @@
 					// handle if not
 					if (meta == '!') {
 						return render(inner, vars);
+					}else{
+						var consp = conregex.exec(key);
+						if(consp){
+							var l = get_value_con(vars,consp[1]);
+							var r = get_value_con(vars,consp[3]);
+							var op = consp[2].replace(/\s/g,'');
+							var conV = false;
+							switch(op){ //do not use the eval(), it is not safe
+								case '==':
+									conV = (l == r);
+									break;
+								case '===':
+									conV = (l === r);
+									break;
+								case '>':
+									conV = (l > r);
+									break;
+								case '<':
+									conV = (l < r);
+									break;
+								case '>=':
+									conV = (l >= r);
+									break;
+								case '<=':
+									conV = (l <= r);
+								case '!=':
+									conV = (l != r);
+									break;
+							}
+							
+							if(conV){
+								return render(inner, vars);
+							}else{
+								//not support	
+							}
+						}
 					}
 					// check for else
 					if (has_else) {
diff --git a/t.min.js b/t.min.js
index 4152667..824dc5a 100644
--- a/t.min.js
+++ b/t.min.js
@@ -1,2 +1 @@
-(function(){function c(a){this.t=a}function l(a,b){for(var e=b.split(".");e.length;){if(!(e[0]in a))return!1;a=a[e.shift()]}return a}function d(a,b){return a.replace(h,function(e,a,i,f,c,h,k,m){var f=l(b,f),j="",g;if(!f)return"!"==i?d(c,b):k?d(m,b):"";if(!i)return d(h,b);if("@"==i){e=b._key;a=b._val;for(g in f)f.hasOwnProperty(g)&&(b._key=g,b._val=f[g],j+=d(c,b));b._key=e;b._val=a;return j}}).replace(k,function(a,c,d){return(a=l(b,d))||0===a?"%"==c?(new Option(a)).innerHTML.replace(/"/g,"&quot;"):
-a:""})}var h=/\{\{(([@!]?)(.+?))\}\}(([\s\S]+?)(\{\{:\1\}\}([\s\S]+?))?)\{\{\/\1\}\}/g,k=/\{\{([=%])(.+?)\}\}/g;c.prototype.render=function(a){return d(this.t,a)};window.t=c})();
\ No newline at end of file
+(function(){var blockregex=/\{\{(([@!]?)(.+?))\}\}(([\s\S]+?)(\{\{:\1\}\}([\s\S]+?))?)\{\{\/\1\}\}/g,valregex=/\{\{([=%])(.+?)\}\}/g,conregex=/([^=><]+?)([!=>< ]+)(.+)$/;function t(template){this.t=template}function scrub(val){return new Option(val).innerHTML.replace(/"/g,"&quot;")}function get_value(vars,key){var parts=key.split(".");while(parts.length){if(!(parts[0] in vars)){return false}vars=vars[parts.shift()]}return vars}function get_value_con(vars,key){var v=null;if(key.charAt(0)=="'"||key.charAt(0)=='"'){v=key.substr(1);if(v.charAt(v.length-1)=="'"||v.charAt(v.length-1)=='"'){v=v.substr(0,v.length-1)}}else{if(!isNaN(key.charAt(0))){v=Number(key)}else{v=get_value(vars,key)}}return v}function render(fragment,vars){return fragment.replace(blockregex,function(_,__,meta,key,inner,if_true,has_else,if_false){var val=get_value(vars,key),temp="",i;if(!val){if(meta=="!"){return render(inner,vars)}else{var consp=conregex.exec(key);if(consp){var l=get_value_con(vars,consp[1]);var r=get_value_con(vars,consp[3]);var op=consp[2].replace(/\s/g,"");var conV=false;switch(op){case"==":conV=(l==r);break;case"===":conV=(l===r);break;case">":conV=(l>r);break;case"<":conV=(l<r);break;case">=":conV=(l>=r);break;case"<=":conV=(l<=r);case"!=":conV=(l!=r);break}if(conV){return render(inner,vars)}else{}}}if(has_else){return render(if_false,vars)}return""}if(!meta){return render(if_true,vars)}if(meta=="@"){_=vars._key;__=vars._val;for(i in val){if(val.hasOwnProperty(i)){vars._key=i;vars._val=val[i];temp+=render(inner,vars)}}vars._key=_;vars._val=__;return temp}}).replace(valregex,function(_,meta,key){var val=get_value(vars,key);if(val||val===0){return meta=="%"?scrub(val):val}return""})}t.prototype.render=function(vars){return render(this.t,vars)};window.t=t})();
\ No newline at end of file
diff --git a/t_test.html b/t_test.html
index f410c54..21b3b71 100644
--- a/t_test.html
+++ b/t_test.html
@@ -21,6 +21,18 @@
 	<h1>{{=greeting}}</h1>
 	<h2>{{=user.display_name}}</h2>
 
+	{{user.display_name=='Jason'}}
+		<p>display_name equal Jason </p>
+	{{/user.display_name=='Jason'}}
+	
+	{{'Jason'==user.display_name}}
+		<p>Jason equal  display_name</p>
+	{{/'Jason'==user.display_name}}
+	
+	{{'David'!=user.display_name}}
+		<p>David not equal  display_name</p>
+	{{/'David'!=user.display_name}}
+
 	{{user.address}}
 		<address>{{%user.address}}</address>
 	{{/user.address}}