function getDivs(pclass) {
     var divs = document.getElementsByTagName("div");
     var divArray=[];
     var arrCount=0;
     for(x=0;x<divs.length;x++){
         if(divs[x].className == pclass)
              divArray[arrCount++]=divs[x];
     }
    
     return (divArray)
}


function NextDiv(){
	var oDiv = getDivs("testimonial");
	var iLength = oDiv.length;
	for(var i = 0; i < iLength; i++) {
		if(oDiv[i].style.display == "block") {
			//now we know which one is visible, so we need to make it hidden and show the next
			if (i != iLength -1){
				oDiv[i].style.display = "none";
				oDiv[i+1].style.display = "block";
				return;
			} else {
				oDiv[i].style.display = "none";
				oDiv[0].style.display = "block";
				return;
			}
		}
	}
}