var currentlyActiveInputRef = false;
var currentlyActiveInputClassName = false;

function highlightActiveInput()
{
	if(currentlyActiveInputRef){
		currentlyActiveInputRef.className = currentlyActiveInputClassName;
	}
	currentlyActiveInputClassName = this.className;
	this.className = 'inputHighlighted';
	if(	this.value == "[在此输入问题题目]" || this.value == "[段落小节标题]")
	this.value = '';
	currentlyActiveInputRef = this;
}

function blurActiveInput()
{
	this.className = currentlyActiveInputClassName;	
}

function initInputHighlightScript()
{
	var tags = ['INPUT','TEXTAREA'];
	
	for(tagCounter=0;tagCounter<tags.length;tagCounter++){
		var inputs = document.getElementsByTagName(tags[tagCounter]);
		for(var no=0;no<inputs.length;no++){
			if(inputs[no].className && inputs[no].className=='doNotHighlightThisInput') continue;
			
			if(inputs[no].tagName.toLowerCase()=='textarea' || (inputs[no].tagName.toLowerCase()=='input' && inputs[no].type.toLowerCase()=='text') || (inputs[no].tagName.toLowerCase()=='input' && inputs[no].type.toLowerCase()=='password'))
			{
				inputs[no].onfocus = highlightActiveInput;
				inputs[no].onblur = blurActiveInput;
			}
		}
	}
}