/* trim函数for javascript       */
	
	function jTrim(str_trim){
		var space_flag;
		var str_temp
		space_flag=true;
		var i=0;
		
		//从左往右去空格
		for(i=0 ; i< str_trim.length ; i++ ){
			if ( space_flag && str_trim.substring(i,i+1)==' '){
				}
			else{	
				space_flag=false;
				break;}
		}
		str_trim=str_trim.substring(i,str_trim.length);
		space_flag=true;
		//从由往左去空格
		for( i=str_trim.length-1;i>=0;i--){
			if (space_flag && str_trim.substring(i-1,i)==' '){
				}
			else{
				space_flag=true;
				break;}
		}
		str_trim=str_trim.substring(0,i+1);
		return str_trim;
	}
	/*验证Email*/
	function CheckEmail(str_mail)
	{
		return(new RegExp(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/).test(str_mail));

	}
	/*验证数字*/
	function CheckNumber(str_number)
	{
		return(new RegExp(/^\d+$/).test(str_number));

	}
	function HtmlToStr(strhtml)
{ 
	var str_html;
	str_html=strhtml;	
	str_html=str_html.replace(/&#59;/g,";");		
	str_html=str_html.replace(/&lt;/g,"<");       
	str_html=str_html.replace(/&gt;/g,">");	        
	str_html=str_html.replace(/&#39;/g,"'")	;	
	str_html=str_html.replace(/&quot;/g,"\"");		
	
	str_html=str_html.replace(/&#115cript/g,"script");
	str_html=str_html.replace(/&#40;/g,"(");	     
	str_html=str_html.replace(/&#41;/g,")");	      
	str_html=str_html.replace(/&#45;&#45;/g,"--");
	//alert(str_html)
	return str_html;
}