js 文本框获取丢失焦点
1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 2 <html xmlns="http://www.w3.org/1999/xhtml"> 3 <head> 4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 5 <title>js 文本框获取丢失焦点</title> 6 <script type="text/javascript"> 7 function MM_setTextOfTextfield(objId,x,newText) { //v9.0 8 with (document){ if (getElementById){ 9 var obj = getElementById(objId);} 10 if (obj){ 11 if(obj.value=='' || obj.value=='search here...'){ 12 obj.value = newText; 13 } 14 } 15 } 16 } 17 </script> 18 </head> 19 <body> 20 <form id="form1" name="form1" method="post" action=""> 21 <label for="textfield"></label> 22 <input name="textfield" type="text" id="textfield" onfocus="MM_setTextOfTextfield('textfield','','')" onblur="MM_setTextOfTextfield('textfield','','search here...')" value="search here..." /> 23 </form> 24 </body> 25 </html>
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1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 2 <html xmlns="http://www.w3.org/1999/xhtml"> 3 <head> 4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 5 <title>js 文本框获取丢失焦点</title> 6 <script type="text/javascript"> 7 function MM_setTextOfTextfield(objId,x,newText) { //v9.0 8 with (document){ 9 if (getElementById){ 10 var obj = getElementById(objId); 11 } 12 if (obj) obj.value = newText; 13 } 14 } 15 </script> 16 </head> 17 <body> 18 <form id="form1" name="form1" method="post" action=""> 19 <label for="textfield"></label> 20 <input name="textfield" type="text" id="textfield" onfocus="MM_setTextOfTextfield('textfield','','')" onblur="MM_setTextOfTextfield('textfield','','search here...')" value="search here..." /> 21 </form> 22 </body> 23 </html>