JS公共函数

// JScript 文件 /* =========== JS 公共函数 080827 ====== */ /*

?========= 功能： =========== */

function IfShow(ShowMsg) { if (ShowMsg == "" ) { return false; } else { return true; } }

/* ========== 功能：替换空格（将多个连续空格替换为一个空格）使用：ReplaceSpace(obj) 返回：string = */

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function ReplaceSpace(str) { while ( str.indexOf(" ") >= 0 ) { str = str.replace(" " ," "); } return str; }

/* ====== 功能：非空检查，不忽略空格提示信息：输入框为空，请输入！使用：isNull(obj,string) 返回：bool */

?function isNull(obj,ShowMsg) { var show = IfShow(ShowMsg) ; //非空检查 if(obj.value == "") { if (show) alert(ShowMsg); obj.focus(); obj.select(); return false; } else { return true; } } /* ================================================================== 功能：邮箱地址检查提示信息：未输入邮件地址或邮件地址无效！使用：MailCheck(obj,string) 返回：bool ================================================================== */

function MailCheck(obj,ShowMsg) { var show = IfShow(ShowMsg) ; if(obj.value!= "") { var ok1=obj.value.indexOf("@"); var ok2=obj.value.indexOf("."); if(!((ok1!=-1)&&(ok2!=-1))) { if (show) alert(ShowMsg); obj.focus(); obj.select(); return false; } var allowstrlist = "&#%<>"; var endvalue = true; for (i=0;i 0) ) { if (show) alert(ShowMsg); obj.focus(); obj.select(); return false; } if (idCardLength==18) { sBirthday=obj.value.substr(6,4)+"-"+Number(obj.value.substr(10,2))+"-"+Number(obj.value.subs tr(12,2)); var d = new Date(sBirthday.replace(/-/g,"/")) if(sBirthday!=(d.getFullYear()+"-"+ (d.getMonth()+1) + "-" + d.getDate())) { if (show) alert(ShowMsg); obj.focus(); obj.select(); return false; } for(var i = 17;i>=0;i --) iSum += (Math.pow(2,i) % 11) * parseInt(obj.value.charAt(17 - i),11); if(iSum%11!=1) { if (show) alert(ShowMsg); obj.focus(); obj.select(); return false; } } else if (idCardLength==15) { sBirthday = "19" + obj.value.substr(6,2) + "-" + Number(obj.value.substr(8,2)) + "-" + Number(obj.value.substr(10,2)); var d = new Date(sBirthday.replace(/-/g,"/")) var dd = d.getFullYear().toString() + "-" + (d.getMonth()+1) + "-" + d.getDate(); if(sBirthday != dd) { if (show) alert(ShowMsg); obj.focus(); obj.select(); return false; } } return true; }

/* ================================================================== 功能：验证电话号码格式是否正确提示信息：未输入或输入电话号码格式不正确！使用：isPhoneNo(obj,string) 返回：bool ================================================================== */

function isPhoneNo(obj,ShowMsg) { var show = IfShow(ShowMsg); var phoneNo = obj.value; var Endvalue = true; var allowstrlist = "1234567890()-"; if(phoneNo!="") { for (i=0;i obj.focus(); obj.select(); return false; break; } var r=objStr.match(reg); if(r==null) { if (show) alert(ShowMsg); obj.focus(); obj.select(); return false; } else { return true; } } /* ================================================================== 功能：字符串操作,去除字符串两边的空格使用：LTrim(string) 返回：string ================================================================== */ function LTrim(str) { var whitespace = new String(" \t\n\r"); var s = new String(str); if (whitespace.indexOf(s.charAt(0)) != -1) { var j=0, i = s.length; while (j < i && whitespace.indexOf(s.charAt(j)) != -1) { j++; } s = s.substring(j, i); } return s; } /* ================================================================== 功能：去除右边的空格 使用：RTrim(string) 返回：string ================================================================== */ function RTrim(str) { var whitespace = new String(" \t\n\r"); var s = new String(str); if (whitespace.indexOf(s.charAt(s.length-1)) != -1) { var i = s.length - 1; while (i >= 0 && whitespace.indexOf(s.charAt(i)) != -1) { i--; } s = s.substring(0, i+1); } return s; } //去除前后空格 function Trim(str) { return RTrim(LTrim(str)); } /* ================================================================== 功能：无效字符的检测（不允许输入特殊字符）提示信息：未输入或输入包含非法字符使用：CheckChar(obj,Lchar,string) Lchar：要检查的特殊字符返回：bool ================================================================== */ function CheckChar(obj,Lchar,ShowMsg) { var show = IfShow(ShowMsg); var strlist = Lchar; //"\"\ >~!@#$%^&*?<>\"\ "; //无效字符的检测 if(obj.value!= "") { var tmpbool=true; for (i=0;i 12) { if (show) alert(ShowMsg); return false; } if (day < 1 || day > 31) { if (show) alert(ShowMsg); return false; } if ((month==4 || month==6 || month==9 || month==11) && day==31) { if (show) alert(ShowMsg); return false; } if (month==2) { var isleap=(year % 4==0 && (year % 100 !=0 || year % 400==0)); if (day>29 || ((day==29) && (!isleap))) { if (show) alert(ShowMsg); return false; } } return true; } /* ================================================================== 功能：日期大小判断(格式：yyyy-mm-dd) 提示信息：未输入或输入的开始日期大于结束日期！使用：JudgeDate(obj1,obj2,string) 返回：bool ================================================================== */ function JudgeDate(obj1,obj2,ShowMsg) { var show = IfShow(ShowMsg) ; var eva = isDate(obj1,"") && isDate(obj2,""); if(obj1.value!="" && obj2.value!="" & eva != false) { var date1 = obj1.value; var myDate1 = Date.parse(date1.replace("-","/")); var date2 = obj2.value; var myDate2 = Date.parse(date2.replace("-","/")); if(myDate1 > myDate2) { if (show) alert(ShowMsg); return false; } else { return true; } } else { if (show) alert(ShowMsg); return false; } } /////////////////////////// function setCopy(_sTxt){try{clipboardData.setData('Text',_sTxt);window.status=_sTxt+'已经复制到剪贴板'}catch(e){}} function setHome(){try{window.external.AddFavorite(window.document.location,window.document.title)}catch(e){};} function $(d){try{return document.getElementById(d);}catch(e){return null;}} function marquees(view,src,cont){ var speed=50 ; var _demo=$(view); var _demo1=$(src); var _demo2=$(cont); _demo2.innerHTML=_demo1.innerHTML+_demo1.innerHTML ; function Marquee(){ if(_demo.offsetWidth<=_demo.scrollLeft){ _demo.scrollLeft=0 }else{ _demo.scrollLeft++ } //window.status=_demo.offsetWidth+','+_demo.scrollLeft; } var MyMar=setInterval(Marquee,speed) ; _demo.onmouseover=function() {clearInterval(MyMar)} _demo.onmouseout=function() {MyMar=setInterval(Marquee,speed)} } function xmlhttp(){ try { return new ActiveXObject("Msxml2.XMLHTTP"); } catch(e) {} try { return new ActiveXObject("Microsoft.XMLHTTP"); } catch(e) {} try { return new XMLHttpRequest(); } catch(e) {} window.status='XMLHTTP error!'; return null; } function setText(http,out,isalert,callback){ if(!isalert){ if(out=='')out='mybody'; var obj=document.getElementById(out); window.status='数据载入中，请稍候... ...'; obj.innerHTML='

数据载入中，请稍候... ...

'; } var s=''; if (http.readyState == 4) { window.status='完成'; if(http.status ==200){s=unescape(http.responseText);}else{s='

服务器忙或网络不通，请稍后再试。'+http.statusText+'
'+unescape(http.responseText)+'

';} if(!isalert){obj.innerHTML=s;if(callback!=''){eval(callback);} }else{ if(s!=''){ if(callback!=''){eval(callback);}alert(s); } } delete http; http=null; } } // a=1;b=2; 从类似字符串中返回a的值var a=getValue(str,'a',';','='); function getValue(str,v,s1,s2){ str+=s1; var ary=str.split(s1); for(var i=0;i=0){ if(ary[i].split(s2)[0]==v){ return ary[i].substring(ary[i].indexOf(s2) +s2.length); } } } return ''; } function neverDragDivision(fObj) { with (this) { if (!fObj) return; this.bDraged = false; this.oDragOrig = fObj; oDragOrig.style.cursor = "move"; oDragOrig.onmousedown = function() { var ofs = Offset(oDragOrig); oDragOrig.style.position = "absolute"; oDragOrig.style.left = ofs.l; oDragOrig.style.top = ofs.t; oDragOrig.X = event.clientX - ofs.l; oDragOrig.Y = event.clientY - ofs.t; bDraged = true; }; //this.leftDiv=Offset(document.getElementById('left1')); oDragOrig.onmousemove = function() { if (!bDraged) return; oDragOrig.setCapture(); //window.status=leftDiv.l+';'+oDragOrig.X+':'+oDragOrig.Y+','+oDragOrig.style.left+':'+oDragOrig.style.top; var l= event.clientX - oDragOrig.X; var t = event.clientY - oDragOrig.Y; //if(Math.abs(l-leftDiv.l)<=50)l=150; oDragOrig.style.left=l; oDragOrig.style.top=t; }; oDragOrig.onmouseup = function() { bDraged = false; oDragOrig.releaseCapture(); }; function Offset(e) { var t = e.offsetTop; var l = e.offsetLeft; var w = e.offsetWidth; var h = e.offsetHeight; while(e=e.offsetParent) { t+=e.offsetTop; l+=e.offsetLeft; } return { t:t, l:l, w:w, h:h } }; }}; //图片按比例缩放 function changeImg(ImgD,iwidth,iheight){ var image=new Image(); image.src=ImgD.src; if(image.width>0 && image.height>0){ if(image.width/image.height>= iwidth/iheight){ if(image.width>iwidth){ ImgD.width=iwidth; ImgD.height=(image.height*iwidth)/image.width; }else{ ImgD.width=image.width; ImgD.height=image.height; } ImgD.alt=image.width+"×"+image.height; } else{ if(image.height>iheight){ ImgD.height=iheight; ImgD.width=(image.width*iheight)/image.height; }else{ ImgD.width=image.width; ImgD.height=image.height; } ImgD.alt=image.width+"×"+image.height; } } }