function Troca_src(){
			  var elems = document.getElementsByTagName("img");
			  valor=elems.length;
			  
					  for(i=0; i < valor;i++){
						 
						  str_src = document.getElementsByTagName("img")[i].src;				 
						  
						  pos_barra = str_src.lastIndexOf( "/" ); 
						  pos_final = str_src.lastIndexOf( "." ); 				  
						  str_src = str_src.substr(pos_barra,pos_final);

						  //alert(str_src);
						  
						  if (str_src == "/left_nav_ad.gif" ){
						  
								if (/MSIE (\d+\.\d+);/.test(navigator.userAgent)) { 
									var ieversion = new Number(RegExp.$1)
									if (ieversion >= 8) {
										document.getElementsByTagName("img")[i].src = "/business/smb/common/pt-br/images/left_nav_ad.gif";
									} else if (ieversion >= 7) {
										document.getElementsByTagName("img")[i].src = "/business/smb/common/pt-br/images/left_nav_ad.gif";
									} else if (ieversion >= 6) {
										document.getElementsByTagName("img")[i].src = "/brasil/pequenasempresas/cbc/img/150x100_ie6.jpg"							
									} else if (ieversion >= 5) {
										document.write("");
									}
									else
										document.getElementsByTagName("img")[i].src = "/business/smb/common/pt-br/images/left_nav_ad.gif";
								}	
						  				  
						  
						  }
					 }
				
}

function Troca_link(){		 
			 
			  var elems_a = document.getElementsByTagName("a");
			  valor1=elems_a.length;
			  
			  //alert(valor1);
			 
			 for(j=0; j < valor1;j++){
				 
				  str_a = document.getElementsByTagName("a")[j].href;

				  //alert(str_a);
				  
				  if (str_a == "http://www.extrememakeover4.com.br/" ){				  
					//alert("ok");
					if (/MSIE (\d+\.\d+);/.test(navigator.userAgent)) { 
						var ieversion = new Number(RegExp.$1)
						if (ieversion >= 8) {
							document.getElementsByTagName("a")[j].href = "http://www.extrememakeover4.com.br/";
						} else if (ieversion >= 7) {
							document.getElementsByTagName("a")[j].href = "http://www.extrememakeover4.com.br/";
						} else if (ieversion >= 6) {						
							document.getElementsByTagName("a")[j].href = "http://go.microsoft.com/?linkid=9694862";							
						} else if (ieversion >= 5) {
							document.write("");
						}
						else
							document.getElementsByTagName("a")[j].href = "http://www.extrememakeover4.com.br/";
					}	
					
					
					
				  }
			 }
}

function Troca_alt(){		 
			 
			  var elems_alt = document.getElementsByTagName("img");
			  valor2=elems_alt.length;
			  
			  //alert(valor2);
			 
			 for(k=0; k < valor2;k++){
				 
				  str_alt = document.getElementsByTagName("img")[k].alt;

				  //alert(str_alt);
				  
				  if (str_alt == "Extreme Makeover 4" ){				  
					//alert("ok");
					if (/MSIE (\d+\.\d+);/.test(navigator.userAgent)) { 
						var ieversion = new Number(RegExp.$1)
						if (ieversion >= 8) {
							document.getElementsByTagName("img")[k].alt = "Extreme Makeover 4";
						} else if (ieversion >= 7) {
							document.getElementsByTagName("img")[k].alt = "Extreme Makeover 4";
						} else if (ieversion >= 6) {						
							document.getElementsByTagName("img")[k].alt = "Internet Explorer 8";							
						} else if (ieversion >= 5) {
							document.write("");
						}
						else
							document.getElementsByTagName("img")[k].alt = "Extreme Makeover 4";
					}	
					
					
					
				  }
			 }
}